Increase framerate limit in remoting host to 30fps

BUG=344675
R=jamiewalch@chromium.org

Review URL: https://codereview.chromium.org/171523003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251937 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 251937
cc: Remove RasterWorkerPool::Task.

This removes some unnecessary layers of abstraction between
internal::Task and the tile manager. Prerequisite to getting
rid of our large raster task objects and anonymous functions.

BUG=269841

Review URL: https://codereview.chromium.org/168083002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251938 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 251938
Reset UnloadController::is_attempting_to_close_browser_ when the download-in-progress prompt is canceled.

This seems to have been broken by https://src.chromium.org/viewvc/chrome?view=rev&revision=217949

BUG=305516

Review URL: https://codereview.chromium.org/160963002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251939 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 251939