libvpx

third_party/libwebm: pull from upstream

Changes:
b6de61a Adds support for simple tags
75a6d2d sample_muxer: Don't write huge files.
cec1f85 mkvmuxer: remove unused timecode_scale variable
8a61b40 Merge "mkvparser: Tiny whitespace fix."
7affc5c clang-format re-run
d6d04ac mkvmuxer: use generic Cluster::AddFrame
4928b0b Merge "mkvmuxer: Write Block key frames correctly."
c2e4a46 Merge "sample_muxer: Use AddGenericFrame to add frames."
e97f296 mkvparser: Tiny whitespace fix.
d66ba44 Merge "Add support to parse DisplayUnit."
deb41c2 Add support to parse DisplayUnit.
42e5660 Fix issues on EBML lacing block parsing
fe1e9bb Fix block parsing to not allow frame_size = 0
2cb6a28 Change assertions to checks when parsing TrackPositions
d04580f Fixes issues on Block Group parsing
c3550fd mkvmuxer: Write Block key frames correctly.
5dd0e40 Merge "mkvmuxer: Set is_key to true for metadata blocks."
8e96863 mkvmuxer: Set is_key to true for metadata blocks.
a9e4819 sample_muxer: Use AddGenericFrame to add frames.
5a3be73 Change assertions to checks when load CuePoints
f99f3b2 mkvmuxerutil::EbmlDateElementSize: remove value param
ff572b5 Frame::IsValid: fix track_number check
b6311dc mkvmuxer: Refactor to remove a lot of duplicate code
256cd02 Merge "mkvmuxer: DiscardPadding should be signed integer."
16c8e78 mkvmuxer: s/frame/data in all AddFrame* functions.
c5e511c mkvmuxer: DiscardPadding should be signed integer.
4baaa2c Add framework build script: iosbuild.sh
3d06eb1 PATENTS: fix a typo: constitutes -> constitute
d3849c2 mkvparser: Dead code removal.
f439e52 Change assertions to checks when preloading Cues
d3a44cd Fix track transversal when listing Cues on sample
c6255af Tweak .gitignore so git status is clean after checkout and
build: - added missing underscore to sample_muxer - added cmake and make
related files
b5229c7 Makefile.unix: s/samplemuxer/sample_muxer/
e3616a6 Add support to parse stereo mode, display width and display
height in mkvparser
a4b68f8 parser: Fix bug in Chapters::Atom::Parse()
bab0a00 cmake: Set library and project name the proper way on Windows.
feeb9b1 Set library name to match Windows expectations.
b9a549b Fix CMakefile to generate libwebm.a
b386aa5 Add CMakeLists.txt and msvc_runtime.cmake.
b0f8a81 parser: Fix memory leak in Chapter parsing
f06e152 mkvmuxer: Fix MoveCuesBeforeClustersHelper recursive call.
27bb747 allow subtitle tracks with ContentEncodings
623d182 DoLoadCluster: tolerate empty clusters
1156da8 Update PATENTS to reflect s/VP8/WebM/g
0d4cb40 mkvmuxerutil: Use rand() in MSVC builds.
e12fff0 mkvmuxer: Overload WriteEbmlHeader for backward compatibility
a321704 mkvmuxer: write correct DocTypeVersion
574045e mkvmuxer: fix DiscardPadding
8be6397 Include crop elements when calculating size of Video element
8f2d1b3 mkvparser: fix DiscardPadding extraction
1c36c24 mkvmuxer: fix style guide violations
568504e Merge "UUIDs can have their high bit set"
acf788b Add support for CropLeft, CropRight, CropTop and CropBottom
elements.
418188b Merge "muxer: codec_id is a mandatory element"
07688c9 mkvmuxer: Reject frames if invalid track number is passed.
2a63e47 muxer: codec_id is a mandatory element
d13c017 UUIDs can have their high bit set

Change-Id: Iba28acb1ff774349d03e565f2641ddea132cf1e7