Get rid of TabContentsWrapper::tab_contents. Also make it use WebContents exclusively. This allows updating all the creaters of TCW to not include tab_contents.h as well, and use WebContents::Create instead.

BUG=98716
Review URL: http://codereview.chromium.org/9108025

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@116600 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/extensions/extension_tab_helper.h b/chrome/browser/extensions/extension_tab_helper.h
index ff053d40..ecc162d 100644
--- a/chrome/browser/extensions/extension_tab_helper.h
+++ b/chrome/browser/extensions/extension_tab_helper.h
@@ -88,7 +88,7 @@
   }
 
   // Sets a non-extension app icon associated with TabContents and fires an
-  // INVALIDATE_TITLE navigation state change to trigger repaint of title.
+  // INVALIDATE_TYPE_TITLE navigation state change to trigger repaint of title.
   void SetAppIcon(const SkBitmap& app_icon);
 
  private: