Pepper: Enable some FileRef in-process tests.

At some point, some FileRef tests were disabled for in-process plugins.
Refactoring FileRef to the browser fixes this problem, so we can enable these
tests again.

BUG=

Review URL: https://codereview.chromium.org/23513084

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226321 0039d316-1c4b-4281-b951-d872f2087c98
Losing focus should hide app list.

BUG=276513
TEST=WindowSelectorTest.SelectingHidesAppList

Review URL: https://codereview.chromium.org/25260004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226322 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 226322
Attach ImeAdapter on prerendered pages.

Explicitly call attachImeAdapter when the prerendered pages are swapped.
This is a temporary solution, as the long term should initialize attaching
when the RenderWidgetHostViewAndroid gets setContentViewCore.

BUG=288344
NOTRY=true

Review URL: https://codereview.chromium.org/25324002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226323 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 226323