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2017-10-17Convert XFA Doc Types to be more preciseRyan Harrison
The existing types are PDF, Dynamic & Static, which are poorly named since they don't really convey the fundamental differences between the types. "PDF" is confusing because PDFium only handles PDFs, and "Dynamic" & "Static" describe what a form may do, not how it is specified or some other fundamental difference. The terms "Dynamic" and "Static" were especially confusing, since XFAF documents must be static by definition, whereas full XFA documents can be either dynamic or static, depending on whether or not they change their layout. The types have been renamed to be clear that they are talking about the type of PDF document being described. "PDF" becomes "None", since this is used to indicate that there are no XFA forms in the document. "Dynamic" becomes "Full", since this indicates that the entire XFA spec is being used for the forms, specifically display layout is in the XML. "Static" has become "ForegroundOnly", since the form is specified using the XFAF (XFA Foreground) subset of the spec. The terms Full & Foreground come from the XFA spec. I would have preferred XFAF to have a different name, since it is the display/foreground layer that isn't XFA when using it. BUG=pdfium:917 Change-Id: I4335958c4a11d77d3bbe63b93602dd5bc14acb57 Reviewed-on: https://pdfium-review.googlesource.com/16010 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-10-16Simplify CPVT_GenerateAP interfaceDan Sinclair
This CL moves the annotation decision inside GenerateAnnotAP and hides the individual annotation AP generation methods. The form methods are hidden inside GenerateFormAP and a general GenerateEmptyAP has been added. Change-Id: I9e761cb10ceca70681df4e546631a7859f1bfc7c Reviewed-on: https://pdfium-review.googlesource.com/16130 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-10-16Add FPDFCatalog_IsTagged to public API.Henrique Nakashima
The new fpdf_catalog.h will contains functions to access entries in the catalog (root) dict in a PDF. Bug: chromium:768986 Change-Id: I6e1d4a479d6f8742981e89f07bab98ee96dc3763 Reviewed-on: https://pdfium-review.googlesource.com/15970 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2017-10-16Convert CPVT_Color to CFX_ColorDan Sinclair
This CL converts the use of CPVT_Color to CFX_Color and removes the CPVT_Color class. Change-Id: I86a2d06524cd8f0fbce2335f0185426cc41dbe84 Reviewed-on: https://pdfium-review.googlesource.com/16030 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-10-16Move HasXFAField out from XFA feature flagRyan Harrison
Moves the PDFium API method FPDF_HasXFAField out from behind the XFA feature flag so that XFA metrics can be generated without enabling the entire feature. Changes some of the constant names to be more accurate. BUG=pdfium:917 Change-Id: I6d8fe9fd88d392d028de2504d39d978de4a1d5b7 Reviewed-on: https://pdfium-review.googlesource.com/15990 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-10-10Fix UAF in SaveData on all of CFFL_* types.Luật Nguyễn
Bug: 756427 Change-Id: I8e31d96c6f3b83a6464ed69c95225362c50386d1 Reviewed-on: https://pdfium-review.googlesource.com/15870 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-10-05Remove CPVT_SectionDan Sinclair
The CPVT_Section only contained a single rect which was used in one place. The place it was used never used the variable it assigned it too. Removed. Change-Id: I5c3fccff4fad6deca4945e301bffb5348692b23c Reviewed-on: https://pdfium-review.googlesource.com/15675 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-10-05Remove CPVT_WordPropsDan Sinclair
Only one of the props was being used and that prop always had the same value. This CL removes CPVT_WordProps. Change-Id: I8cf64f0e9b80c5af18b8fc40ef7b602ffeec7f93 Reviewed-on: https://pdfium-review.googlesource.com/15672 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-10-05Remove unused CPVT_SecPropschromium/3234Dan Sinclair
The CPVT_SecProps were assigned but never accessed. Removed. Change-Id: I2ed15f44dc7a428261e729fc7a835885257d4807 Reviewed-on: https://pdfium-review.googlesource.com/15671 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-10-05Remove more unused paramsDan Sinclair
Remove some unused parameters in cpwl_edit_impl.cpp Change-Id: Ie56775ef671ae03b2b53a01cc2539683585a1c68 Reviewed-on: https://pdfium-review.googlesource.com/15690 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-10-05Remove unused parametersDan Sinclair
Remove unused params from CPDF_VariableText methods. Change-Id: Ia02f99ea84f0c29e9f674a2cb837b422de390d33 Reviewed-on: https://pdfium-review.googlesource.com/15670 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-10-05Add ObservedPtr to catch Widget being killed by JSRyan Harrison
Another case of a call causing JS to run, which can remove a widget that is called later. BUG=chromium:771979 Change-Id: I5f25a38097662b70cfb777f76f0e3d50e7c11b1b Reviewed-on: https://pdfium-review.googlesource.com/15610 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2017-10-05Add ObservedPtrs to catch issues in SaveDataRyan Harrison
BUG=chromium:756427 Change-Id: I90c7065ec5a467cb954cdf3e1d6954a0b0655d4e Reviewed-on: https://pdfium-review.googlesource.com/15630 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
2017-10-05Move CPDF_RenderOptions members to privateDan Sinclair
This CL moves the members of CPDF_RenderOptions to be private members and adds accessor methods as needed. Change-Id: Ie91665ff53ae00cc4c53741d089d375503fabe11 Reviewed-on: https://pdfium-review.googlesource.com/15531 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-10-05Roll FT to ae7dc1f62d826083d418e86cce3f66a76dff038aNicolas Pena
List of changes: https://chromium.googlesource.com/chromium/src/third_party/freetype2.git/+log/7e50824288fa..ae7dc1f62d82 Bug: chromium:754574 pdfium:905 Change-Id: Ic7525eb5a4d5fab19bdc2ec7e625e0fc889c52a2 Reviewed-on: https://pdfium-review.googlesource.com/15370 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
2017-10-04Fix UAF in SetVisible().Henrique Nakashima
SetVisible() may be called during Destroy() which may be called during SetVisible(). This fixes the latest in a family of bugs that happen after an instance is freed by code triggered by JS code while it's executing a method. The CL has a lot of protection for many of these points where JS may be executed and potentially destroy objects. The return types of many methods that may execute JS have been changed to bool, indicating whether the instance is still alive after the call. Bug: chromium:770148 Change-Id: If5a9db4d8d6aac10f4dd6b645922bb96c116684d Reviewed-on: https://pdfium-review.googlesource.com/15190 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2017-10-03Improve CPDF_ReadVaildatorArtem Strygin
Merge CPDF_ReadValidator::IsXXXAvailable and CPDF_ReadValidator::SheduleXXXDowload methods into one CheckXXXAndRequestIfUnavailable. Change-Id: Ib108d5bc3589df17269c841b0024dd4690909304 Reviewed-on: https://pdfium-review.googlesource.com/13730 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Art Snake <art-snake@yandex-team.ru>
2017-10-02More define cleanupDan Sinclair
Remove unused defines; Move to .cpp files where possible; Fixup values. Change-Id: I88cd5deb04b14ab8e9f8097a695c3d0b52d64b4c Reviewed-on: https://pdfium-review.googlesource.com/15130 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-10-02Allow to use null FX_DOWNLOADHINTS to check data availabilityArtem Strygin
This is allow us check document/pages/form availability using FPDFAvail_IsXXAvail without download requests. Change-Id: Ie4525147d8b8e98573d53b2e5b456b632a8a1951 Reviewed-on: https://pdfium-review.googlesource.com/13030 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Art Snake <art-snake@yandex-team.ru>
2017-09-28Cleanup font definesDan Sinclair
Use methods to match font information; cleanup some font code. Change-Id: Ib99c1e466e56723cb5d264d49e1caf9bbbc0daed Reviewed-on: https://pdfium-review.googlesource.com/15072 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-09-28Add Length1 in TrueType font streamsNicolás Peña
Bug: pdfium:892 Change-Id: Ica0377515589a96a8919cb8ed2a3da1d1c9f6191 Reviewed-on: https://pdfium-review.googlesource.com/15030 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
2017-09-28Implement FakeFileAccess.Artem Strygin
Update embedder tests to simulate unavailable data and download requests. Change-Id: I634fa89d2a0c859243e849752936da87568909f4 Reviewed-on: https://pdfium-review.googlesource.com/11890 Commit-Queue: Art Snake <art-snake@yandex-team.ru> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-09-28Fix load non first pages in linearized document with hints table.Artem Strygin
Tha problem was, that when we use hints tables, we do not check pages tree availability, but currently for receiving page object in CPDF_Document, the pages tree should be available anyway. Change-Id: I908d00027fd8727f074a38e47fea095229ef5147 Reviewed-on: https://pdfium-review.googlesource.com/11892 Commit-Queue: Art Snake <art-snake@yandex-team.ru> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-09-28Fix infinite loop on form availability check.Artem Strygin
The problem was, that the CPDF_SyntaxParser read last block not from requested position. In this case It move down requested position to fill whole buffer. As result this additional data was not requested by DownloadHints. To fix this allow resize data buffer in CPDF_SyntaxParser, to store more small block, and always read from requsted position. Also add reading check into CPDF_Parser::LoadLinearizedMainXRefTable to prevent infinite loops. Change-Id: I14d3f4457393025dca390aa3ceaa940716463534 Reviewed-on: https://pdfium-review.googlesource.com/11891 Commit-Queue: Art Snake <art-snake@yandex-team.ru> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-09-28Change bottom-top order in FontBBoxNicolás Peña
The FontBBox, for compatiblity reasons, must be specified top to bottom. This CL flips the current implementation which was bottom to top. Bug: pdfium:892 Change-Id: Ieb8d3bb183ed7870e3b3d7f0380f1343adedf87b Reviewed-on: https://pdfium-review.googlesource.com/14851 Commit-Queue: Nicolás Peña Moreno <npm@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-09-27Move CFX_Font definition to cfx_font.hDan Sinclair
This CL moves the CFX_Font definition out of fx_font.h and into cfx_font.h to match the cfx_font.cpp implementation. Change-Id: Icc2fc7463fa4b9d0bec925e80b60a638136a83a1 Reviewed-on: https://pdfium-review.googlesource.com/14951 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
2017-09-27Remove FXSYS_strlen and FXSYS_wcslenchromium/3226Ryan Harrison
With the conversion of internal string sizes to size_t, these wrappers are no longer needed. Replacing them with strlen and wcslen respectively. BUG=pdfium:828 Change-Id: Ia087ca2ddaf688a57ec9bd9ddfb8533cbe41510d Reviewed-on: https://pdfium-review.googlesource.com/14890 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-09-27Remove FX_STRSIZE and replace with size_tRyan Harrison
BUG=pdfium:828 Change-Id: I5c40237433ebabaeabdb43aec9cdf783e41dfe16 Reviewed-on: https://pdfium-review.googlesource.com/13230 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-09-27Cleanup FX macrosDan Sinclair
This CL renames the FX_OS defines to have _OS_ in their names and drops the _DESKTOP suffix. The FXM defines have been changed to just FX. Change-Id: Iab172fba541713b5f6d14fb8098baf68e3364c74 Reviewed-on: https://pdfium-review.googlesource.com/14833 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-09-26Rename CFPDF_* classesDan Sinclair
This CL removes the CFPDF_* prefix. The classes have been renamed to their FPDF_* name with Context appended to the end. This makes it easier to differentiate things like CPDF_DataAvail vs CFPDF_DataAvail as the former is now FPDF_AvailContext. Change-Id: I4a97727b3418de268c8494eaca2ed413b5cc2954 Reviewed-on: https://pdfium-review.googlesource.com/14810 Reviewed-by: Art Snake <art-snake@yandex-team.ru> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-09-25API: rename FPDFPage_CountObject() to FPDFPage_CountObjects()Miklos Vajna
Keep the old name, but mark it as deprecated and don't use it in own code. Change-Id: I17b88dccacf494a03562c0d003cfcb2bc03bf430 Reviewed-on: https://pdfium-review.googlesource.com/14750 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-09-22Fix UAF after destroying a widget during OnBeforeKeyStroke().chromium/3223Henrique Nakashima
Bug: chromium:766957 Change-Id: I61b282059fb4fc2c8ba6dafc502f030f31dd324d Reviewed-on: https://pdfium-review.googlesource.com/14710 Commit-Queue: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-09-22API: rename FPDFPath_CountPoint() to FPDFPath_CountSegments()Miklos Vajna
This was the last place talking about "point objects". Change-Id: Ib5f5d5b8efdd674ca5902ff82c2bd4d9f2db8bb1 Reviewed-on: https://pdfium-review.googlesource.com/14651 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-09-21Move CFX_UnownedPtr to UnownedPtrDan Sinclair
This CL moves CFX_UnownedPtr to UnownedPtr and places in the fxcrt namespace. Bug: pdfium:898 Change-Id: I6d1fa463f365e5cb3aafa8c8a7a5f7eff62ed8e0 Reviewed-on: https://pdfium-review.googlesource.com/14620 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-09-21Rename CFX_RetainPtr to RetainPtrDan Sinclair
This CL renames CFX_RetainPtr to RetainPtr and places in the fxcrt namespace. Bug: pdfium:898 Change-Id: I8798a9f79cb0840d3f037e8d04937cedd742914e Reviewed-on: https://pdfium-review.googlesource.com/14616 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-09-21Move CFX_Observable to ObservableDan Sinclair
This CL renames CFX_Observable to Observable and moves into the fxcrt namespace. The test suite names were updated to ObservedPtr from fxcrt. Bug: pdfium:898 Change-Id: Ia507482bc0a1d6d8bbf12c0c55c4a88f6c8910e2 Reviewed-on: https://pdfium-review.googlesource.com/14615 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-09-21Rename CXFA_DefFontMgr to CFGAS_DefaultFontManagerDan Sinclair
This CL removes any XFA requirements on the default font manager and moves it to the fgas/ directory. Some helper methods from CXFA_FontMgr are moved into the fgas/fgas_fontutils.h files. Change-Id: I17ba8dc2bd60085c17d8a3328f6625675a82787f Reviewed-on: https://pdfium-review.googlesource.com/14570 Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-09-21Move CFX_AutoRestorer to fxcrt::AutoRestorerDan Sinclair
This CL renames CFX_AutoRestorer to just AutoRestorer and places in the fxcrt namespace. Bug: pdfium:898 Change-Id: Id9f36df94e95f3b2a55054bc198ca1bfd249ee3d Reviewed-on: https://pdfium-review.googlesource.com/14450 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-09-21Add embeddertest for CFWL_EditDan Sinclair
This CL adds two mouse selection tests for CFWL_Edit. In order to do so the needed selection code was added to the XFA widget handler and plumbed down to the CFWL_Edit field as needed. Bug: pdfium:840 Change-Id: Ia3b5f5d191494a4579c01524df8fb35b24cc0085 Reviewed-on: https://pdfium-review.googlesource.com/14530 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-09-20Add FPDFPath_GetPoint() APIchromium/3221Miklos Vajna
Combined with the previously added FPDFPath_CountPoint(), this allows getting the coordinates of all points of a path. Change-Id: Ic969723d4b01ee427498d38ce323c74147b87a9c Reviewed-on: https://pdfium-review.googlesource.com/14111 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-09-20Cleanup CPWL_Caret codeDan Sinclair
Add some early returns where possible. Change-Id: I9c53435e6e927057b085b1ccaa30a1637c185486 Reviewed-on: https://pdfium-review.googlesource.com/14350 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-09-19Fix draw order of popup annotations.Henrique Nakashima
Bug: chromium:765375 Change-Id: Ifdbd33ca92ec7105778788f891095eaf280c18cf Reviewed-on: https://pdfium-review.googlesource.com/14370 Commit-Queue: Henrique Nakashima <hnakashima@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-09-19Remove unneeded core/fxcodec/fx_codec.h includes.chromium/3220Lei Zhang
Change-Id: I703321108712e8c4a11a8343ecf8b1a8804c1d1a Reviewed-on: https://pdfium-review.googlesource.com/14352 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-09-19Setting focus on a widget may destroy the widgetDan Sinclair
When a widget has focus set, this can trigger an Invalidation call which can trigger a page and annotation reload. This reload can destroy the current widget we're handling. This CL adds ObservedPtrs as needed so we can make sure the widgets are still alive after we've done the Invalidation. Bug: chromium:765921 Change-Id: I51cd24aa1ebd96abe9478efef5130a4e568dac1a Reviewed-on: https://pdfium-review.googlesource.com/14290 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-09-19Remove unused methods and field in CFFL_FormFiller.Henrique Nakashima
Change-Id: Ice5ef31af6e32b6a02072e2a4445b19d4f801d3c Reviewed-on: https://pdfium-review.googlesource.com/14330 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
2017-09-18Convert string class namesRyan Harrison
Automated using git grep & sed. Replace StringC classes with StringView classes. Remove the CFX_ prefix and put string classes in fxcrt namespace. Change AsStringC() to AsStringView(). Rename tests from TEST(fxcrt, *String*Foo) to TEST(*String*, Foo). Couple of tests needed to have their names regularlized. BUG=pdfium:894 Change-Id: I7ca038685c8d803795f3ed02545124f7a224c83d Reviewed-on: https://pdfium-review.googlesource.com/14151 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
2017-09-15Use unsigned types for app age, value age in widgets.chromium/3218chromium/3217Tom Sepez
Then if they roll over, it doesn't matter, since we only check for change. And then we can pull a silly check. Then remove some no-op calls where we didn't use the result. Change-Id: I35ba470b42fb8c32a6984999e0311b21729791ca Reviewed-on: https://pdfium-review.googlesource.com/14210 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-09-15Introduce CPWL_Wnd::PrivateData class.Tom Sepez
First step in passing ownership of this memory to the CPWL_Wnd. In turn, nest two other classes that also require PrivateData to satisfy nesting rules. Move one stray #define to the appropriate file while at it. Change-Id: I565934565421f5843a3b792b3bdc21b5e8839eb8 Reviewed-on: https://pdfium-review.googlesource.com/14170 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-09-15Move CPWL_CREATPARAM to CPWL_Wnd::CreateParamsTom Sepez
This nesting makes so much more sense when I read the code. Fix member naming for this in CPWL_Wnd. Pass in/out CreateParams arg as pointer. Kill Reset() method, only called during destroy and nothing needs explicit cleanup. Change-Id: If50e403e11c131e7656da09c0cb36866223d64c6 Reviewed-on: https://pdfium-review.googlesource.com/14070 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2017-09-15Add ObservedPtrs to KillFocus pathRyan Harrison
This is to prevent use after free issues due to these calls causing reloads of content that have the side of effect of destroying windows. BUG=chromium:760455 Change-Id: I3f3947be8b32964783abf5577a24ba6a713b3476 Reviewed-on: https://pdfium-review.googlesource.com/14150 Commit-Queue: Ryan Harrison <rharrison@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>