cc: Fix incomplete changes to add ETC1 support

ETC1 resources was recently added (https://codereview.chromium.org/27973002),
but the change did not cover the LayerTreeHostImpl path, which cause crashes
when one tries to use ETC1 UIResourceBitmap.  This update adds in the missing
changes.

BUG=314749

Review URL: https://codereview.chromium.org/41903003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233874 0039d316-1c4b-4281-b951-d872f2087c98
[Files.app] Make the file-type dropbox at the bottom hidden by default.

Sometimes, it could be seen during initialization. 

BUG=316133
TEST=manually tested

Review URL: https://codereview.chromium.org/61733007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233875 0039d316-1c4b-4281-b951-d872f2087c98
Disable ReplacePageClassification on Android due to flakiness.

TBR=hfung@chromium.org
BUG=316385

Review URL: https://codereview.chromium.org/65723002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233876 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233875
[MemSheriff] widen suppression, intentional leak

UA style sheets are leaked intentionally, ignore all leaks originating from UA
sheet parsing.

NOTRY=true
TBR=dglazkov@chromium.org, thestig@chromium.org
BUG=121729

Review URL: https://codereview.chromium.org/65783002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233877 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233877