Remove unused JS code.

The copy is replaced by new C++ based implementation. This CL cleans the
remaining older code.

BUG=286196 286202
TEST=Ran browser_tests --gtest_filter="*FileSystemExtensionApiTest*:*FileManagerBrowserTest*:*FileBrowserPrivateApiTest*" and tested manually.

Review URL: https://codereview.chromium.org/25098002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225947 0039d316-1c4b-4281-b951-d872f2087c98
Mac: add a field to HyperlinkTextView to control first responder status.

BUG=298017
TEST=Existing tests and manual test for the bookmark bubble which overrides the default behaviour: In a local profile, click the bookmark star and press the tab key. The focus should remain in the "Name" textfield of the bubble.

Review URL: https://codereview.chromium.org/25110002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225948 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 225947
SVN changes up to revision 225948