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2017-05-18Add more CFX_UnownedPtr usage.Tom Sepez
One lifetime issue was fixed by passing CPDF_RenderStatus into Continue() methods rather than holidng a pointer which was going stale. Bug: Change-Id: I63b9dce4c1a0d1377cc407b5460535f7c916a040 Reviewed-on: https://pdfium-review.googlesource.com/5659 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2017-05-18Use Unowned/Observed pointers between doc and FF onwership hierarchies.Tom Sepez
See the explanation in CPDFSDK_FormFillEnvironment.h Change-Id: I52feb25fb358831233a636e3ead5aa70e98c5baa Reviewed-on: https://pdfium-review.googlesource.com/5658 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2017-05-18Use UnownedPtr to check CFX_*StringC lifetimeschromium/3104Tom Sepez
Change interform to avoid temp StringC with dangling ptr. Change-Id: I8d8659973bcdf2cdbcaa6efa6012e4acce5f1604 Reviewed-on: https://pdfium-review.googlesource.com/5571 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-05-18Fix typo in CFX_ImageTransformer::ContinueNicolas Pena
This CL fixes a typo introduced in: https://pdfium-review.googlesource.com/c/4495/3/core/fxge/dib/cfx_imagetransformer.cpp#395 Bug: chromium:723976 Change-Id: I629d1e61054805f768356fce44c25f40f9346beb Reviewed-on: https://pdfium-review.googlesource.com/5634 Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-05-18Adding fm2js embedder testsDan Sinclair
This Cl adds the basis of the test framework to execute the javascript produced by CXFA_FM2JSContext and verify the results are correct. Change-Id: Ie46625b7e27ca0808e9cc41fdc00b7c0a212837d Reviewed-on: https://pdfium-review.googlesource.com/5651 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-05-18Add kerning test for bug 528103Nicolas Pena
Bug: chromium:528103 Change-Id: I990c829af8c6a9f481a34fc0e25de6814bbab34a Reviewed-on: https://pdfium-review.googlesource.com/5633 Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-05-18Break linkage from CPDFXA_DocEnvironment to IJS_EventContext.Tom Sepez
CPDFXFA_DocEnvionment is part of the heirarchy of objects owned by the embedder under its FPDF_Document object. IJS_EventContext is part of the hierarchy of objects owned by the embedder under its FPDF_FormHandle object. The FPDF_Document must outlive the FPDF_FormHandle, so there is a lifetime inversion with the m_pJSEventContext member. No matter, event contexts are transient and allocated in a stack-based manner as control bounces from C++ to JS and vice versa, and keeping a persistent one seems wrong. So make it only as needed. Bug: 723644 Change-Id: I74dd328ad4b501e4adf57821b44ecc78d945eb0f Reviewed-on: https://pdfium-review.googlesource.com/5656 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2017-05-18Bad cast to CPDF_Document in FPDFEditEmbeddertestTom Sepez
The test, as written, is only correct for the non-xfa case, where the FPDF_Document opaque type is equivalent to the CPDF_Document. Under XFA, however, there is another layer of indirection that the test harness needs to respect. Sorry, I missed this the first time around when I signed off on the CL that introduced this test. Change-Id: Ida3579edf639fbfca2939dc151c0420247e90ab3 Reviewed-on: https://pdfium-review.googlesource.com/5657 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2017-05-18Revert "Smells like a leak in PWL_ComboBox.cpp"Tom Sepez
This reverts commit b084c1f615e9b5d82a36aeedcff2339b7ac91265. Reason for revert: new crashes. BUG=723415 TBR=dsinclair@chromium.org Change-Id: I5194170f74a5781dad213d08a28e574eb6d56156 Reviewed-on: https://pdfium-review.googlesource.com/5655 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-05-18Remove CXFA_FMErrorInfodan sinclair
This Cl removes the CXFA_FMErrorInfo class. The message was never output, just used as a flag to determine if there was an error. The class has been replaced with a boolean. Change-Id: I1cde99ce6957f5f8c6be0755a198d80ec8378b3a Reviewed-on: https://pdfium-review.googlesource.com/5653 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-18Fix a situation where images are not properly rendered.Lei Zhang
This regressed in commit e21fe98. When the image's bpc is a multiple of 8, there exists a colorspace, and there is a Decode parameter, the image data source was incorrectly pointing to a data structure that only contained black pixels. BUG=chromium:718762 Change-Id: I5d3fa739e41726b4ed1ebc16465e17f83fff9f8d Reviewed-on: https://pdfium-review.googlesource.com/5333 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-05-17Use more static_cast in fpdfsdkNicolas Pena
This CL replaces some reinterpret_cast with static_cast in fpdfsdk. It also removes an obsolete comment in fpdfedit.h Change-Id: I36c29bfcd6382490a8c955b50ccfa4c93ab351c7 Reviewed-on: https://pdfium-review.googlesource.com/5632 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-05-17Add font loading fuzzerNicolas Pena
Bug: pdfium:667 Change-Id: Ibef9a2131b97da1a1e6b9469d389aa5fb914c797 Reviewed-on: https://pdfium-review.googlesource.com/5631 Commit-Queue: Nicolás Peña <npm@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-05-17Shorten internal JS prefixes.Dan Sinclair
This Cl shortens the prefix applied in JavaScript to reduce the size of the generated JavaScript string. Change-Id: Ica5d02cc89b17140ba42deae72484cd159f8e3e5 Reviewed-on: https://pdfium-review.googlesource.com/5590 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-17CFX_UnownedPtr: check during assignment time as well.Tom Sepez
In particular, doing m_pPtr = nullptr; in your dtor to evade this check will not longer work. Fix slight mis-ordering observeds in CFX_Font and CPDFXFA_Context. Change-Id: I3e6137159430333b091364021283a54a13d916b5 Reviewed-on: https://pdfium-review.googlesource.com/5570 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
2017-05-17Add some missing keywords in ToUnicodeNicolas Pena
Bug: pdfium:667 Change-Id: I8c3d07d2c533e6dd2a98099673b136c587c37a98 Reviewed-on: https://pdfium-review.googlesource.com/5630 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-05-17Reland: Small fix in CPDF_TrueTypeFont loadNicolas Pena
The ToUnicode map should not be ignored when it exists. Doing so can cause a charcode to be assigned an incorrect glyph index, and will result in garbled text. Previously, some bots failed with 'unable to open' the .png file. Bug: chromium:665467 Change-Id: I435a73647eadcc3ba37bb0120f3b5cee381ae7a3 Reviewed-on: https://pdfium-review.googlesource.com/5610 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-05-17Adding CXFA_Parse unittestsDan Sinclair
This CL adds the beginning of unittests for the CXFA_Parse code. Change-Id: I06e556f1a35405bc683c536d390071917ee330a6 Reviewed-on: https://pdfium-review.googlesource.com/5556 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-17SkPictureRecorder.h includes less, so we have to IWYUchromium/3103Mike Reed
Bug: Change-Id: I294e765916f35ef933142789179a06ffad67fc31 Reviewed-on: https://pdfium-review.googlesource.com/5494 Reviewed-by: Mike Reed <reed@google.com> Commit-Queue: Mike Reed <reed@google.com>
2017-05-17Roll FreeType to 2.8Lei Zhang
Update ftoption.h with new (unused by us) setting: AF_CONFIG_OPTION_TT_SIZE_METRICS Change-Id: Ia8004e1ab1e72778319d23e7dfa8cbdcbebfdd34 Reviewed-on: https://pdfium-review.googlesource.com/5555 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-05-17Rename formcalc files to better match contentsDan Sinclair
Most files match the contents. The expression files are named to match their base type even though they contain all the expression subclasses. Change-Id: I3b7705c7b206a9fa1afae8b677f765e8b788e84d Reviewed-on: https://pdfium-review.googlesource.com/5492 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-05-17Gif: Detect string decoding errorsNicolas Pena
This CL adds some checks to make sure the DecodeString method does not go out out control: If code is equal to code_table[code].prefix, it will try to loop forever. Even if that's not the case, avoid reading a negative position from the stack. Bug: chromium:722672 Change-Id: I638f91542ba21f3a9915198fef853cc3cf94f4f1 Reviewed-on: https://pdfium-review.googlesource.com/5513 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-05-17Revert "Small fix in CPDF_TrueTypeFont load"Nicolás Peña
This reverts commit dde95d8be9bc2817e34429fc38ee6d89d6d5ab75. Reason for revert: the test added is flaky Original change's description: > Small fix in CPDF_TrueTypeFont load > > The ToUnicode map should not be ignored when it exists. Doing so can cause a > charcode to be assigned an incorrect glyph index, and will result in garbled > text. > > Bug: chromium:665467 > Change-Id: I21c1bf560a0731d974191d4189ea730ef9868334 > Reviewed-on: https://pdfium-review.googlesource.com/5512 > Reviewed-by: Lei Zhang <thestig@chromium.org> > Commit-Queue: Nicolás Peña <npm@chromium.org> > TBR=thestig@chromium.org,tsepez@chromium.org,dsinclair@chromium.org,npm@chromium.org NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true Bug: chromium:665467 Change-Id: I704a34f326d31018061bcfd857fb25f7e4ee4cc2 Reviewed-on: https://pdfium-review.googlesource.com/5493 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-05-16Be skeptical of bare |new|s.Tom Sepez
In particular, prefer an explicit .release() call when handing ownership of an object to a caller across a C-API. Change-Id: Ic3784e9d0b2d378a08d388989eaea7c9166bacd1 Reviewed-on: https://pdfium-review.googlesource.com/5470 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-05-16CFDE_RenderDevice::m_bOwnerDevice is always falseTom Sepez
So remove it. But they probably wanted it to be true in one place, because it looks like a leak. So find a better way to own the object. Change-Id: I15937e29da5ce8b380f82cb20ee3ecc3f49b8ca3 Reviewed-on: https://pdfium-review.googlesource.com/5473 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-05-16Small fix in CPDF_TrueTypeFont loadNicolas Pena
The ToUnicode map should not be ignored when it exists. Doing so can cause a charcode to be assigned an incorrect glyph index, and will result in garbled text. Bug: chromium:665467 Change-Id: I21c1bf560a0731d974191d4189ea730ef9868334 Reviewed-on: https://pdfium-review.googlesource.com/5512 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-05-16Properly ref-count CPDFXFA_PageTom Sepez
Change-Id: Ibd1ebe4191f61e20d815de7f1a1094d78b72e6a7 Reviewed-on: https://pdfium-review.googlesource.com/5391 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-05-16Introduce CFX_UnownedPtr to detect lifetime inversion issues.Tom Sepez
There are places where an object "child" has a raw pointer back to object "owner" with the understanding that owner will always outlive child. Violating this constraint can lead to use after free, but this requires finding two paths: one that frees the objects in the wrong order, and one that uses the object after the free. The purpose of this patch is to detect the constraint violation even when the second path is not hit. We create a template that is used in place of TYPE*. It's dtor, when a memory tool is present, goes out and probes the first byte of the object to which it points. Used in "child", this allows the memory tool to prove that the "owner" is still alive at the time the child is destroyed, and hence the constraint is never violated. Change-Id: I2a6d696d51dda4a79ee2f00a6752965e058a6417 Reviewed-on: https://pdfium-review.googlesource.com/5475 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-05-16Handle when XFA parser error handlers cannot format error messages.Lei Zhang
Limit the length of error messages to avoid string formatting failure. Simplify some CXFA_FMParse error handling code too. BUG=chromium:708428 Change-Id: I2f5fdb61349a90b3ba681dcc04a26ce0d7f2bdda Reviewed-on: https://pdfium-review.googlesource.com/5331 Commit-Queue: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-05-16Add formcalc lexer tests.Dan Sinclair
This CL adds tests for CXFA_FMLexer. Change-Id: I4cb7000212dda6d2b32211005a1c22deabb813ae Reviewed-on: https://pdfium-review.googlesource.com/5554 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-05-16Update formcalc return typesDan Sinclair
Update return types to be bools instead of ints. Make some methods private. Change-Id: I5d55c48a861f90e9bd116ef835c11cdb515002a6 Reviewed-on: https://pdfium-review.googlesource.com/5553 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-05-16Do not walk off end of formcalc stringDan Sinclair
The fm2js code takes a pointer to the input string and then walks along that pointer. There are currently no checks to verify we haven't walked off the end of the pointer into random memory. If this happens, we can end up allocating large chunks of memory and copying random bits. BUG=chromium:721533 Change-Id: Ia61fe96c1ff9eb9ded63cf8326b7be44986bd9e1 Reviewed-on: https://pdfium-review.googlesource.com/5550 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
2017-05-16Minor xfa_lexer.cpp cleanupDan Sinclair
Remove the inc/dec/get methods that aren't helpful. Change methods to return void instead of uint32_t and make sure they set the proper error messages. Change-Id: I741316e7990a776d528625f34fd941316c524c15 Reviewed-on: https://pdfium-review.googlesource.com/5530 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-16Simplify ContrastAdjust().chromium/3102Lei Zhang
Add a few constants in the process. Change-Id: Id69b939e4ea6a3de879e0a1f29d1453e95c838db Reviewed-on: https://pdfium-review.googlesource.com/5552 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-05-15Remove gamma codeDan Sinclair
The gamma value is always 2.2, which means the table entries all point to themselves. Remove the usage of the gamma table. Change-Id: Idbb06015e8acd9f106f4bd1da5ef06563fb26296 Reviewed-on: https://pdfium-review.googlesource.com/5352 Reviewed-by: Lei Zhang <thestig@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-15Remove unused flags from CPDF_CreatorNicolas Pena
The only user of CPDF_Creator is FPDF_Doc_Save, and it only uses flags 1 or 2 when calling Create. Thus, the other two flags will never be set. Change-Id: Ib2eb0ce5585469c7749f0ab350855f1c6a2bba08 Reviewed-on: https://pdfium-review.googlesource.com/5491 Reviewed-by: Lei Zhang <thestig@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-05-15Libtiff: upstream fix for heap buffer overflowNicolas Pena
Upstream patch: https://github.com/vadz/libtiff/commit/5a4eceed8d2f28d05f49add9ce647684d59d461a Bug: chromium:722071 Change-Id: Idef412edbeb3255375ab18c68721dbaf7c601119 Reviewed-on: https://pdfium-review.googlesource.com/5511 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-05-15Check correctness of PDF Skia argsNicolas Pena
Users get confused when they set both Skia args to true and their code does not compile. This CL adds a check for this when generating gn args. Bug: pdfium:722 Change-Id: I0fb6f6a3fa64b094b674c602f38c736ee7b7fd65 Reviewed-on: https://pdfium-review.googlesource.com/5510 Commit-Queue: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Cary Clark <caryclark@google.com> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-05-15Gif: error out on invalid code sizeschromium/3101Nicolas Pena
From the Gif spec: 'The output codes are of variable length, starting at <code size>+1 bits per code, up to 12 bits per code. This defines a maximum code value of 4095 (0xFFF).' 'Because the LZW compression used for GIF creates a series of variable length codes, of between 3 and 12 bits each' Bug: chromium:722115 Change-Id: Ic9cff99e6012195a6b5173693b029dc710285688 Reviewed-on: https://pdfium-review.googlesource.com/5490 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-05-15Convert CPSOutput to an IFX_WriteStreamdan sinclair
This Cl updates CPSOutput to inherit from IFX_WriteStream and converts the CFX_PSRenderer to accept an IFX_WriteStream instead of a CPSOutput. Change-Id: Ibde5c7da1c2f6df0a10cb6e9a470e18fbab167b8 Reviewed-on: https://pdfium-review.googlesource.com/5431 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-15Add a WriteString method to IFX_WriteStreamdan sinclair
This Cl allows passing a CFX_ByteStringC to IFX_WriteStream along with the buffer method. This makes it easier to pass C-style strings to the stream. Change-Id: I1051eb3ba17c7fbd42984c14dc60cbce24d72f3f Reviewed-on: https://pdfium-review.googlesource.com/5430 Reviewed-by: Nicolás Peña <npm@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-15Smells like a leak in PWL_ComboBox.cppTom Sepez
Change-Id: I519d79b2b22d2b947c546c6285195b8ca52f4993 Reviewed-on: https://pdfium-review.googlesource.com/5471 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-05-15Return unique_ptr from xfa lexer Scan() methodTom Sepez
Change-Id: I7586194b59d2c8e28fc24b698ea93f4a2ab636e2 Reviewed-on: https://pdfium-review.googlesource.com/5474 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
2017-05-12Rename ErrorData and fix potential leakchromium/3100chromium/3099Nicolas Pena
This CL fixes a leak that can be caused by a longjmp in ErrorData. The method is renamed to express the fact that it includes such, and a followup should remove the jmps altogether. Bug: chromium:721488 Change-Id: Iefcc82a77a30ff77b7973b05611440a8d5bf275e Reviewed-on: https://pdfium-review.googlesource.com/5450 Commit-Queue: Nicolás Peña <npm@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
2017-05-12Merge FXGIF_Context and CGifDecompressor into CGifContextchromium/3098Nicolas Pena
Change-Id: I60c9cbd83ff9e7a30a5a570a6ad1cf8f52360c07 Reviewed-on: https://pdfium-review.googlesource.com/5410 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
2017-05-11Use clamp() in a couple more places.Lei Zhang
Change-Id: I9b7a1c101e3c73d0270f9216225e5a13d9937b97 Reviewed-on: https://pdfium-review.googlesource.com/5332 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Lei Zhang <thestig@chromium.org>
2017-05-11Rename render device classesDan Sinclair
This Cl renames the CFX_RenderDevice subclasses to make their usage clearer. Change-Id: Ie820b57df9a3743ce8c6893fb483b398a1f1bdbe Reviewed-on: https://pdfium-review.googlesource.com/5390 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-11Remove unused GetPlatformSurface and GetDC methodsdan sinclair
The times we need the DC we call ::GetDC to retrieve it from the platform. These methods are unused. Change-Id: If83aa9b37ae2231d8029db6f2e6d8d17f1825611 Reviewed-on: https://pdfium-review.googlesource.com/5350 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-11Add missing CheckUnsupportedErrorDan Sinclair
The FPDF_LoadDocument call was missing the CheckUnSupportedError so, if the document contained unsuppoted information the user would not be notified. This brings the method in line with the other loading methods. Change-Id: I308b25335a228eb02c51562f9caf91cda9193b73 Reviewed-on: https://pdfium-review.googlesource.com/5336 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-05-11Do not use vector data() when it is emptyNicolas Pena
Before, all pointers were being initialized to 0. After raw pointers were changed to vectors, data() was used in some cases, but now no longer returns nullptr when it is supposed to. This CL fixes that. Bug: chromium:721417 Change-Id: Ia31b75b18dc17d7eed48538145fe5d0d59668843 Reviewed-on: https://pdfium-review.googlesource.com/5353 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
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