cc: Don't require DelegatedRendererLayer to push properties every frame

Now that the DelegatedRendererLayerClient is gone, we should not need
to push properties every frame, instead only when we have something new
to push.

Covered by existing tests to verify the layer continues to function.

R=piman
BUG=259090

Review URL: https://codereview.chromium.org/107143002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@239199 0039d316-1c4b-4281-b951-d872f2087c98
Add 'Dump Database' tab to syncfs-internals (only for v2 for now)

Screenshot: https://drive.google.com/a/google.com/file/d/0B6X0ebzoaRahOEFxVVVrZFMzMnc/view

BUG=none
TEST=manual

Review URL: https://codereview.chromium.org/107743002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@239200 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 239200
Files.app: Unused string resource removal (Part 1)

Here is the list of removed resources and the point when they are gone:
r115122 IDS_FILE_BROWSER_ROOT_DIRECTORY_LABEL
r135352 IDS_FILE_BROWSER_SEARCH_EXPAND (introduced but never used)
r150782 IDS_FILE_BROWSER_SEARCH_SPINNER
r156541 IDS_FILE_BROWSER_SEND_TO_DRIVE
r184415 IDS_FILE_BROWSER_UNDO_DELETE
r223045 IDS_FILE_BROWSER_DRIVE_RETRY
r231560 IDS_FILE_BROWSER_PHOTO_IMPORT_*
r236426 IDS_FILE_BROWSER_ACTION_CHOICE_*

BUG=266228

Review URL: https://codereview.chromium.org/107783002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@239201 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 239201