Strings for new extension permissions and settings bubble.

BUG=306128

Review URL: https://codereview.chromium.org/53623002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232323 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 232323
Do not give GPU memory to backgrounded compositors.

This has already been disabled on all platforms except Windows and
Chrome OS to be more conservative about GPU memory.

All platforms are moving to a delegated renderer where, if keeping
around resources for a fast tab-switch is desired, it can be
accomplished by not releasing those resources in the browser process.

This feature was originally requested in crbug.com/134750.

Also remove the infrastructure for preserving backbuffers of
backgrounded renderers. This feature was never enabled.

BUG=276559

Review URL: https://codereview.chromium.org/53633003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232324 0039d316-1c4b-4281-b951-d872f2087c98
Roll Web Page Replay 522:523.

This picks up a new feature which allows the user to scramble images.

BUG=
TBR=tonyg@chromium.org

Review URL: https://codereview.chromium.org/53673003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232325 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 232325