[Android] Remove existing *.em file before running EMMA instrumentation.

BUG=334319
NOTRY=True

Review URL: https://codereview.chromium.org/138873002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245181 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 245181
Remove extra slash from proxy-preconnect path.

BUG=333919

Review URL: https://codereview.chromium.org/139553004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245182 0039d316-1c4b-4281-b951-d872f2087c98
Expand support in safe_numeric.h

* Refactor code in preparation for safe math operations.
* Support float type for numeric casts.
* Expose IsValueInRangeForNumericType as part of the API.
* Add saturated_cast.

BUG=332611
R=akalin@chromium.org, willchan@chromium.org

Review URL: https://codereview.chromium.org/131063002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245183 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 245183