Get rid of hung_renderer_dialog file and namespace.

Instead move the methods into browser_dialogs.h and rename them.

ShowForTabContents -> ShowHungRendererDialog
HideForTabContents -> HideHungRendererDialog.

BUG=None
TEST=compiled locally and trybots

Review URL: http://codereview.chromium.org/6588002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@76140 0039d316-1c4b-4281-b951-d872f2087c98
7 files changed