Revert 227006 "Revert 226984 "Disable CallocOverflow under Mac/A..."

> Revert 226984 "Disable CallocOverflow under Mac/ASAN"
> 
> > Disable CallocOverflow under Mac/ASAN
> > 
> > BUG=304125
> > TBR=kcc@chromium.org
> > 
> > Review URL: https://codereview.chromium.org/25986003
> 
> TBR=jochen@chromium.org
> 
> Review URL: https://codereview.chromium.org/26001003

TBR=jochen@chromium.org

Review URL: https://codereview.chromium.org/26210003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227258 0039d316-1c4b-4281-b951-d872f2087c98
Automated Commit: Committing new LKGM version 4788.0.0 for chromeos.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227259 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 227258
FileAPI: Prepare to depregate OpenFileSystem for non-sandboxed filesystems

OpenFileSystem makes sense only for sandboxed-filesystem (temporaryfs,
persistentfs and syncfs). This change prepares to deprecate it for
non-sandboxed filesystem.

This...
- removes callsites of OpenFileSystem from chromeos code, and instead calls
GetFileSystemInfoForChromeOS for now.
- Ensures non-sandboxed filesystem never calls OpenFileSystem.


BUG=297412
TEST=browser_tests
TEST=unit_tests

Review URL: https://codereview.chromium.org/25216003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227260 0039d316-1c4b-4281-b951-d872f2087c98
[Android WebView] Disable shrinksStandaloneImagesToFit

If shrinksStandaloneImagesToFit is true, then it breaks single image
documents in wrap contents mode.

BUG=
NOTRY=true

Review URL: https://codereview.chromium.org/26207002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227261 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 227261