Roll pdfium. This brings in:
Roll pdfium. This brings in:

cb46ea1 Fix BUILD.gn for commit 3522876d.
ab99c38 Revert 95c018e.
95c018e Fixes for re-enabling more MSVC level 4 warnings.
3522876 Remove custom memory manager.
e7ee98e Fix for UMR in CXML_Parser::GetCharRef.
30f2ff1 Fix integer overflow in fx_basic_[bw]string.cpp.
d7db790 Fix a crasher issue due to invalid 'bits per component' in PDF.
a26b328 fix a crash issue in _CMapLookupCallback.
f3227ae Fix uninitialized nresults and RGB.
e644f7f Fix uninitialized offset.
5a5c042 Fix uninitialized RGB in GetRGB.
17dd07a Fix uninitialized RGB in translating scanline.
ab4221c Integer overflow in fx_basic.h and fx_memory.h.
c7d8739 Fix uninitialized RGB in LoadPalette.
cceb554 Fix uninitialized font_offset.

Review URL: https://codereview.chromium.org/374233003

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@281993 0039d316-1c4b-4281-b951-d872f2087c98

chuan9/chromium-crosswalk,M4sse/chromium.src,Chilledheart/chromium,Jonekee/chromium.src,hgl888/chromium-crosswalk-efl,Jonekee/chromium.src,PeterWangIntel/chromium-crosswalk,ondra-novak/chromium.src,axinging/chromium-crosswalk,axinging/chromium-crosswalk,krieger-od/nwjs_chromium.src,markYoungH/chromium.src,Fireblend/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,PeterWangIntel/chromium-crosswalk,Just-D/chromium-1,axinging/chromium-crosswalk,Pluto-tv/chromium-crosswalk,bright-sparks/chromium-spacewalk,Just-D/chromium-1,TheTypoMaster/chromium-crosswalk,fujunwei/chromium-crosswalk,jaruba/chromium.src,ltilve/chromium,TheTypoMaster/chromium-crosswalk,Fireblend/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,Pluto-tv/chromium-crosswalk,axinging/chromium-crosswalk,dednal/chromium.src,Just-D/chromium-1,dushu1203/chromium.src,mohamed--abdel-maksoud/chromium.src,Chilledheart/chromium,hgl888/chromium-crosswalk,littlstar/chromium.src,Pluto-tv/chromium-crosswalk,dushu1203/chromium.src,ltilve/chromium,krieger-od/nwjs_chromium.src,ondra-novak/chromium.src,PeterWangIntel/chromium-crosswalk,dednal/chromium.src,markYoungH/chromium.src,littlstar/chromium.src,Chilledheart/chromium,TheTypoMaster/chromium-crosswalk,Just-D/chromium-1,littlstar/chromium.src,dushu1203/chromium.src,crosswalk-project/chromium-crosswalk-efl,krieger-od/nwjs_chromium.src,M4sse/chromium.src,Jonekee/chromium.src,markYoungH/chromium.src,ondra-novak/chromium.src,markYoungH/chromium.src,M4sse/chromium.src,TheTypoMaster/chromium-crosswalk,Pluto-tv/chromium-crosswalk,TheTypoMaster/chromium-crosswalk,ondra-novak/chromium.src,krieger-od/nwjs_chromium.src,M4sse/chromium.src,dushu1203/chromium.src,fujunwei/chromium-crosswalk,jaruba/chromium.src,dednal/chromium.src,dednal/chromium.src,markYoungH/chromium.src,dednal/chromium.src,Jonekee/chromium.src,hgl888/chromium-crosswalk,hgl888/chromium-crosswalk,fujunwei/chromium-crosswalk,dushu1203/chromium.src,hgl888/chromium-crosswalk-efl,Just-D/chromium-1,jaruba/chromium.src,jaruba/chromium.src,hgl888/chromium-crosswalk-efl,markYoungH/chromium.src,chuan9/chromium-crosswalk,M4sse/chromium.src,dushu1203/chromium.src,hgl888/chromium-crosswalk-efl,fujunwei/chromium-crosswalk,crosswalk-project/chromium-crosswalk-efl,dednal/chromium.src,dushu1203/chromium.src,Pluto-tv/chromium-crosswalk,dushu1203/chromium.src,bright-sparks/chromium-spacewalk,bright-sparks/chromium-spacewalk,krieger-od/nwjs_chromium.src,mohamed--abdel-maksoud/chromium.src,krieger-od/nwjs_chromium.src,Fireblend/chromium-crosswalk,Jonekee/chromium.src,dednal/chromium.src,ltilve/chromium,ltilve/chromium,Jonekee/chromium.src,Jonekee/chromium.src,Chilledheart/chromium,fujunwei/chromium-crosswalk,fujunwei/chromium-crosswalk,chuan9/chromium-crosswalk,markYoungH/chromium.src,markYoungH/chromium.src,hgl888/chromium-crosswalk-efl,littlstar/chromium.src,Fireblend/chromium-crosswalk,Fireblend/chromium-crosswalk,littlstar/chromium.src,crosswalk-project/chromium-crosswalk-efl,jaruba/chromium.src,chuan9/chromium-crosswalk,axinging/chromium-crosswalk,TheTypoMaster/chromium-crosswalk,crosswalk-project/chromium-crosswalk-efl,ondra-novak/chromium.src,crosswalk-project/chromium-crosswalk-efl,Jonekee/chromium.src,PeterWangIntel/chromium-crosswalk,fujunwei/chromium-crosswalk,crosswalk-project/chromium-crosswalk-efl,Pluto-tv/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,hgl888/chromium-crosswalk-efl,krieger-od/nwjs_chromium.src,krieger-od/nwjs_chromium.src,ltilve/chromium,Fireblend/chromium-crosswalk,dushu1203/chromium.src,ltilve/chromium,Chilledheart/chromium,M4sse/chromium.src,crosswalk-project/chromium-crosswalk-efl,markYoungH/chromium.src,krieger-od/nwjs_chromium.src,mohamed--abdel-maksoud/chromium.src,bright-sparks/chromium-spacewalk,Jonekee/chromium.src,M4sse/chromium.src,ltilve/chromium,mohamed--abdel-maksoud/chromium.src,bright-sparks/chromium-spacewalk,Jonekee/chromium.src,ltilve/chromium,TheTypoMaster/chromium-crosswalk,bright-sparks/chromium-spacewalk,jaruba/chromium.src,bright-sparks/chromium-spacewalk,PeterWangIntel/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,chuan9/chromium-crosswalk,chuan9/chromium-crosswalk,axinging/chromium-crosswalk,ondra-novak/chromium.src,mohamed--abdel-maksoud/chromium.src,chuan9/chromium-crosswalk,dednal/chromium.src,dednal/chromium.src,ondra-novak/chromium.src,markYoungH/chromium.src,dushu1203/chromium.src,chuan9/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,jaruba/chromium.src,fujunwei/chromium-crosswalk,Chilledheart/chromium,hgl888/chromium-crosswalk,Chilledheart/chromium,crosswalk-project/chromium-crosswalk-efl,hgl888/chromium-crosswalk-efl,M4sse/chromium.src,TheTypoMaster/chromium-crosswalk,krieger-od/nwjs_chromium.src,axinging/chromium-crosswalk,hgl888/chromium-crosswalk,axinging/chromium-crosswalk,hgl888/chromium-crosswalk,M4sse/chromium.src,Just-D/chromium-1,chuan9/chromium-crosswalk,littlstar/chromium.src,Chilledheart/chromium,dushu1203/chromium.src,Just-D/chromium-1,Chilledheart/chromium,hgl888/chromium-crosswalk-efl,bright-sparks/chromium-spacewalk,Just-D/chromium-1,mohamed--abdel-maksoud/chromium.src,Just-D/chromium-1,jaruba/chromium.src,bright-sparks/chromium-spacewalk,mohamed--abdel-maksoud/chromium.src,dednal/chromium.src,jaruba/chromium.src,littlstar/chromium.src,jaruba/chromium.src,Pluto-tv/chromium-crosswalk,M4sse/chromium.src,krieger-od/nwjs_chromium.src,Fireblend/chromium-crosswalk,hgl888/chromium-crosswalk,hgl888/chromium-crosswalk-efl,Pluto-tv/chromium-crosswalk,ondra-novak/chromium.src,Fireblend/chromium-crosswalk,dednal/chromium.src,axinging/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,markYoungH/chromium.src,PeterWangIntel/chromium-crosswalk,ltilve/chromium,hgl888/chromium-crosswalk,Fireblend/chromium-crosswalk,hgl888/chromium-crosswalk-efl,littlstar/chromium.src,hgl888/chromium-crosswalk,TheTypoMaster/chromium-crosswalk,crosswalk-project/chromium-crosswalk-efl,Jonekee/chromium.src,fujunwei/chromium-crosswalk,jaruba/chromium.src,axinging/chromium-crosswalk,ondra-novak/chromium.src,Pluto-tv/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,M4sse/chromium.src,axinging/chromium-crosswalk