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2018-05-25Add proper const/non-const versions of CPDF_Dictionary::GetArrayFor().Lei Zhang
BUG=pdfium:234 Change-Id: I5c900aa0547afef0c60de35422b4ee489daa6cfb Reviewed-on: https://pdfium-review.googlesource.com/32913 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-05-25Mark more CPDF_Objects as const in action and bookmark code.Lei Zhang
Change-Id: Ib5f4cdb9c7f9c33561028a85029649ba68f4a6e5 Reviewed-on: https://pdfium-review.googlesource.com/32912 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-05-25Mark more CPDF_Objects as const in font code.Lei Zhang
Change-Id: Id37333ba61ad0d395055acffd75d4d8be5eb2b3e Reviewed-on: https://pdfium-review.googlesource.com/32911 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-05-25Move fuzzers to testing/fuzzers.Lei Zhang
Move them out of testing/libfuzzer, to make it possible to pull libfuzzer into that directory. Leave testing/libfuzzer/BUILD.gn there for now as a transitional build file. BUG=pdfium:1088 Change-Id: I4126d89dd3e075ac63477a4860e029c135866dbe Reviewed-on: https://pdfium-review.googlesource.com/32896 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-05-25Add proper const/non-const versions of CPDF_Dictionary::GetStreamFor().chromium/3441Lei Zhang
BUG=pdfium:234 Change-Id: Ia3e758bbe5c445c3856f5215e900e02a16b4d7d7 Reviewed-on: https://pdfium-review.googlesource.com/32910 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-05-25Remove CPDF_FormField::{Insert,Clear}OptionTom Sepez
It is not called anywhere. Change-Id: Ic5af010300a20fdd3d05f55df481030a946bb8c4 Reviewed-on: https://pdfium-review.googlesource.com/32971 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-05-25Reserve space for code words when creating encoder contextRyan Harrison
During encoding, the code is going to walk through every character in m_msg and determine what values need to be added to m_codewords. The ceiling on the number of characters being added to m_codewords is the length of m_msg, so reserving enought space in advance. This prevents thrash related to incrementing the string and thus resizing in a tight loop. BUG=chromium:846027 Change-Id: Icefd6955933f8068feeeee6243e430f60c50d747 Reviewed-on: https://pdfium-review.googlesource.com/32990 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2018-05-25Mark CPDF_Object pointers in pattern code as const.Lei Zhang
Change-Id: Id7bf252ebe25c92d26065d1138a445ebb2f78d0b Reviewed-on: https://pdfium-review.googlesource.com/32187 Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2018-05-25[xfa] Generate CXFA_EventParam.newText dynamicallyDan Sinclair
When an xfa.event is sent it is possible to change the selStart, selEnd and change values of the event. This should cause the value of newText to be changed as needed. This CL removes m_wsNewText from CXFA_EventParam and instead generates the new text based on the previous text, the selection and the change. Bug: 1066 Change-Id: I35d126fad9771c8980654a8af64d2b98989bff3f Reviewed-on: https://pdfium-review.googlesource.com/32970 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-05-25[xfa] Add missing xfa.event.cancelAction propertyDan Sinclair
This CL adds the missing cancleAction property from the xfa.event object. Bug: 1066 Change-Id: I7d38956e2985c1f6ac0eba6de090874f1f72003c Reviewed-on: https://pdfium-review.googlesource.com/32950 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-05-25[xfa] Clamp selStart, selEnd values in CJX_EventPseudoModelDan Sinclair
This CL adds bounds checking for the selStart and selEnd settings of the event object. The selEnd is not allowed to be less then selStart. They are also not allowed to be negative. This also clamps them to the length of the prevText string. Bug: 1066 Change-Id: Ifc9113c669c83a4a97655554affbbce30c2bfc64 Reviewed-on: https://pdfium-review.googlesource.com/32933 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-05-25[xfa] Restrict the editable xfa.change propertiesDan Sinclair
According to the XFA Spec only the cancelAction, selStart, selEnd and change properties of xfa.event are editable. This CL adds checking to early out if attempting to set any of the other properties. Bug: 1066 Change-Id: Ie6129e1f65de7584f0b5f3072a1acf6e25d44a2c Reviewed-on: https://pdfium-review.googlesource.com/32932 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-05-25[xfa] Rename pValue to pReturn for clarityDan Sinclair
This CL renames the pValue parameters to the CJX_EventPseudoModel Property helpers. This makes it a little clearer that the thing we're setting is _not_ pValue but wsValue. Bug: 1066 Change-Id: I1f468659c4e241059da0bbe43c461be788cd62a0 Reviewed-on: https://pdfium-review.googlesource.com/32931 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-05-25[xfa] Allow accessing the event changed parameter from JS.Dan Sinclair
This CL updates the CFXJSE_Engine code to access the defined properties of a class if we fail to find the property in any other way. This fixes up an issue where we were unable to read the 'change' property of the CJX_EventPseudoModel because we could not find the 'change' property. Bug: 1066 Change-Id: I4ad205bc527beeca1c3e24a36cdde0c21287d9fb Reviewed-on: https://pdfium-review.googlesource.com/32930 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-05-25Add code to display XFA JS log messagesDan Sinclair
This CL adds a bit of commented out code to CJX_LogPseudoModel to dump any xfa.log.message() commands to the terminal. It's commented out as we don't want it running normally but we can enable as needed. Change-Id: Ia53759253391cbaa249a1801aa1541213020ad68 Reviewed-on: https://pdfium-review.googlesource.com/32915 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-05-24CPDF_HintTables should not try to read 0 bits.Lei Zhang
CFX_BitStream::GetBits() got refactored recently, with an assert to not read 0 bits. A fuzzer then discovered code that is trying to do that. BUG=chromium:846394 Change-Id: Ib18b47200c82aab369109b5911540db724172690 Reviewed-on: https://pdfium-review.googlesource.com/32934 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-05-24Do some variable cleanup in CJBig2_ContextNicolas Pena
This CL cleans up variables in CJBig2_Context. It moves some declarations further, to when the variables are actually used. It also caches huffman tables in a vector of unique_ptr. Change-Id: Id3af96f9526b1000f681e4e2b174bba07b45ee55 Reviewed-on: https://pdfium-review.googlesource.com/32715 Commit-Queue: Nicolás Peña Moreno <npm@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2018-05-24Mark some pointers as non-const in CPDF_NameTree.Lei Zhang
The class modifies the tree, so stop pretending its const. Change-Id: I1095239a728fc0999c84db37d5cb17f596b9c791 Reviewed-on: https://pdfium-review.googlesource.com/32185 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-05-24Improve constness for more CPDF_Objects pointers.Lei Zhang
Most of them can be marked const. A couple are marked non-const because eventually something inside gets modified. Change-Id: I5415ca8d1efdac451cde340272436cd1e6ec433f Reviewed-on: https://pdfium-review.googlesource.com/32184 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-05-23Remove GetBits32().Lei Zhang
Replace it with CFX_BitStream. Change-Id: Ib74657f888b8dec8b6fdad7b49e28d250991c590 Reviewed-on: https://pdfium-review.googlesource.com/32852 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-05-23Avoid repeated calculations in CFX_BitStream::GetBits().Lei Zhang
Change-Id: Icfb7c6933625436b9fcf6a9fdfd0e5f655108eca Reviewed-on: https://pdfium-review.googlesource.com/32851 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-05-23Add unit test for CFX_BitStream.Lei Zhang
Change-Id: I764196b9cc1d437313aac18ee9d5dbed642c7119 Reviewed-on: https://pdfium-review.googlesource.com/32850 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-05-23[xfa] Skip text length check for empty text fieldschromium/3439Dan Sinclair
This CL sets the text edit engine to skip the length check when doing an insert if the engine is currently empty. This allows handling inserting the formatted version of strings if they have a length longer then the maximium length. Bug: 1066 Change-Id: If9799334f889b8ae0f568f1f9d5457e2b504aa1d Reviewed-on: https://pdfium-review.googlesource.com/32898 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-05-23Fix linking errors in fuzzer targets.Lei Zhang
Commit 86688dea moved some code out of a header, so now build targets that used to only include the header need proper dependencies. BUG=chromium:845771 Change-Id: I28603eea721b0ee19c2539ecf93fc3c22c3a8298 Reviewed-on: https://pdfium-review.googlesource.com/32895 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-05-23Move SkFloatToDecimal pow10 inside anonymous namespaceDan Sinclair
This CL moves the pow10 definition inside the pdfium::skia namespace in order to fix conflicts with the skia version of the same file. This comes up due to the code coverage tools. Bug: chromium:845505 Change-Id: Ief53a2bbd15cb9828be23417ff3442461347d146 Reviewed-on: https://pdfium-review.googlesource.com/32893 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-05-22Make friend RetainPtr<T> statements consistently public.Lei Zhang
Also make destructors private for RetainPtr sub-classes, and add missing destructors. Change-Id: I451bf0aae2dae943b1f450d0aa4ca5124dc578fd Reviewed-on: https://pdfium-review.googlesource.com/32853 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-05-22Fix nits in fxjs.Lei Zhang
- Make parameter checking more consistent in a several places. - Remove unnecessary parameter size checks. - Get rid of new statements / FX_Free() calls. Change-Id: I7bac8e678f590815a398a318cd62a2947e1dd973 Reviewed-on: https://pdfium-review.googlesource.com/32836 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-05-22Simplify CPDF_ShadingPattern::Validate().Lei Zhang
Fix some nits in CPDF_ShadingPattern as well. Change-Id: I6b4b73f99031733a113fe2ad1bdc1d1e565b7a7d Reviewed-on: https://pdfium-review.googlesource.com/32738 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-05-22Remove useless CPDFSDK_Widget::SetDefaultValue().chromium/3438Lei Zhang
Change-Id: I5fda9b68309a8b1f0b1768c26a25c95d7dda8d3d Reviewed-on: https://pdfium-review.googlesource.com/32745 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-05-22Fix a regression with missing text.Lei Zhang
Commit 10e1f05a incorrectly removed a font weight sanitizing step in the font substitution code. BUG=chromium:820345 Change-Id: I876f65a5649270648616f561eaad17ee333b9a9e Reviewed-on: https://pdfium-review.googlesource.com/32832 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-05-22Add test case for a font substitution regression.Lei Zhang
BUG=chromium:820345 Change-Id: Ia3adb6a7565e12f3d5e129e2babb4b8628028269 Reviewed-on: https://pdfium-review.googlesource.com/32810 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-05-22Order CHKs in alphabetical order within each fileNicolas Pena
This CL orders the CHKs in fpdf_view_c_api_test.c in alphabetical order within each file because it is more convenient for these reasons: * Easier to find existing APIs for which exact name is not known. * Easier to verify that the ordering is being followed when adding APIs. Change-Id: Ie9f56dd97e64b288927a14927c90ad8ec4cb8539 Reviewed-on: https://pdfium-review.googlesource.com/32713 Commit-Queue: Nicolás Peña Moreno <npm@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-05-22Remove JBIG2_memcpy() and JBIG2_memset().Lei Zhang
Just use memcpy() and memset(). Change-Id: Id6c6fab4e65a5524786ae318270c5981313825f2 Reviewed-on: https://pdfium-review.googlesource.com/32743 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2018-05-22Remove return value from CJBig2_Image::SetPixel().Lei Zhang
Nobody reads it. Change-Id: I76c0f5881e5432d2086cb8eaec7fc70fa5b71536 Reviewed-on: https://pdfium-review.googlesource.com/32741 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2018-05-22Fix method style in JBig2_Image.Lei Zhang
Rename fooBar() to FooBar(). Change-Id: I87775fa14ce7e4f4a5897780d0d02fb61c7693ff Reviewed-on: https://pdfium-review.googlesource.com/32739 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2018-05-22Add FPDFPageObj_GetStrokeWidth() APIMiklos Vajna
It was already possible to set the stroke width of a page object, this is the other direction. Change-Id: I5c4681b232768fc928bc7a169f223877284d4812 Reviewed-on: https://pdfium-review.googlesource.com/32770 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-05-22Remove useless CPWL_ListBox::KillFocus().Lei Zhang
This override method just calls its parent class's method. Change-Id: I4b22f55267a651a0eef0bf4e77d1231a7721fd6c Reviewed-on: https://pdfium-review.googlesource.com/32747 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-05-22Fix spaces too wide in XFA Dropdown.Henrique Nakashima
CFGAS_PDFFontMgr::GetCharWidth() is only used for spaces, for no good reason I could find. It's broken in this case too, returning a default value of 600 for any character. This CL removes this method and its only usage that led to finding this issue. Bug: pdfium:1083 Change-Id: I954de45101715b5af05169612fb5eca1b1a170b4 Reviewed-on: https://pdfium-review.googlesource.com/32740 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-05-22Declare some variables closer to when used in CFX_FontMapper.Lei Zhang
Change-Id: I06ca9eb7e8bb19f75ee75937a44e4ae548a7a92c Reviewed-on: https://pdfium-review.googlesource.com/32791 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2018-05-21Avoid indexing into std::vector inside a tight loop.chromium/3437Lei Zhang
In CCodec_FaxDecoder::v_GetNextLine(), a fixed size vector often needs to be inverted. Doing so without checking bounds on every access makes a big difference in non-optimized builds. BUG=chromium:843899 Change-Id: Iecc0a3da22631a289745245563dab7a7c3c458d0 Reviewed-on: https://pdfium-review.googlesource.com/32744 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-05-18Fix small typo in common.pychromium/3436chromium/3435Ryan Harrison
This causes a crash if running verbose mode Change-Id: Ib5fe3dada8c81874aae110e21252edad05668a36 Reviewed-on: https://pdfium-review.googlesource.com/32737 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2018-05-18Fix issues with XFA font loadingRyan Harrison
This fixes two partially interrelated bugs with font loading in XFA documents. First, it adds falling back to the builtin fonts if there are no viable embedded or installed font for the top-level XFA font manager. Additionally it changes the load font code path in CXFA_FWLTheme to use the top level XFA font manager, instead of the one that just handles the system installed fonts. The main visible issue that this patch fixes is that currently using --font-dir with pdfium_test on a XFA PDF can cause text to not be displayed in widgets and/or NOTREACHED asserts. This occurs if there isn't a needed fonts embedded in the document or in the font directory, since currently PDFium will not correctly fall back to the builtins. BUG=pdfium:1008,pdfium:1020 Change-Id: I451a8aede63d639e401c0cc076443e61d8b7a2f8 Reviewed-on: https://pdfium-review.googlesource.com/32730 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2018-05-17Add check that --font-dir is actually a directorychromium/3434Ryan Harrison
Hoisted myself on this today when I was actually passing the path to the font file I wanted to use, not the directory. BUG=pdfium:1008,pdfium:1020 Change-Id: I4a68a7d96633e951a92125d83397ff457288b1e0 Reviewed-on: https://pdfium-review.googlesource.com/32636 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-05-17More overflow checks in bidi codeDan Sinclair
There are several more places where the width is added to a characters valid width in the bidi code. This CL changes all occurances to used a check numeric. Bug: chromium:844046 Change-Id: Idd8be3a4a576af626b5afa6f7cd04cc160b929d5 Reviewed-on: https://pdfium-review.googlesource.com/32714 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2018-05-17Deprecate several Path/Text APIs.Nicolas Pena
This CL deprecates the following APIs in favor of the more general versions: FPDFPath_SetStrokeColor FPDFPath_GetStrokeColor FPDFPath_SetStrokeWidth FPDFPath_SetLineJoin FPDFPath_SetLineCap FPDFPath_SetFillColor FPDFPath_GetFillColor FPDFText_SetFillColor Change-Id: Iccaa2ce26025e51366bc50e058e39650f3698836 Reviewed-on: https://pdfium-review.googlesource.com/32711 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
2018-05-17Make CXFA_LayoutProcessor an UnownedPtr in CXFA_FFDocViewDan Sinclair
The LayoutProcessor is owned by the CXFA_Document. Make the ownership explicit with an UnownedPtr. Change-Id: I100af9e2e029e0a5db4ee365e11977016ffdcd70 Reviewed-on: https://pdfium-review.googlesource.com/32670 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-05-17Roll third_party/freetype/src/ 2157d8fa6..9e345c911 (9 commits)Lei Zhang
https://chromium.googlesource.com/chromium/src/third_party/freetype2.git/+log/2157d8fa6f7e..9e345c911714 $ git log 2157d8fa6..9e345c911 --date=short --no-merges --format='%ad %ae %s' 2018-05-10 alan.coopersmith Further fix to visibility flag testing with Solaris Studio compilers. 2018-05-08 wl [autofit] Avoid potential SEGV if running out of memory. 2018-05-07 madigens CMake: Allow using project as subfolder in other project 2018-05-07 wl [build] Suppress configure's `nothing to be done' message. 2018-05-04 mpsuzuki Support symbol visibility features of Sun / Oracle C compilers. 2018-05-02 madigens Unbreak CMake Windows installation 2018-05-02 wl Remove FT_CONFIG_OPTION_PIC and related code. 2018-05-01 wl * Version 2.9.1 released. ========================= 2018-04-26 wl Another fix for handling invalid format 2 cmaps. Created with: roll-dep third_party/freetype/src BUG=pdfium:1084 TBR=npm@chromium.org Change-Id: I282e6c9c3cde6b3068f92461b08e14f86f033768 Reviewed-on: https://pdfium-review.googlesource.com/32712 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-05-17Annotate CFX_ImageTransformer with LIKELY().Lei Zhang
Doing this in the inner loops gets us another small performance improvement. Change-Id: I61fdf4bf8363a66123b3be3bc7ca9b5370f451fc Reviewed-on: https://pdfium-review.googlesource.com/32710 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2018-05-17Add comment about cleaning binding nodesDan Sinclair
The reason for calling ReleaseBindingNodes() has changed but the code comment hadn't. This CL updates the code comment to make it clearer why this release has to happen. Change-Id: I0c08c7580ef7c8508cd4db7b8930d5f2cd595b1b Reviewed-on: https://pdfium-review.googlesource.com/32690 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2018-05-17Expose CJBig2_Image::ComposeTo() as a public method.Lei Zhang
CJBig2_Image::ComposeFrom() wraps a call to ComposeTo() and does an extra validity check. In tight loops where the validity check will always succeed, this is wasteful. Change existing callers of ComposeFrom() to ComposeTo() when the validity check has already been done. BUG=chromium:840728 Change-Id: I39fb42eea49b92b7804cbd42c3d8a0329edeb58d Reviewed-on: https://pdfium-review.googlesource.com/32637 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>