Bunch of match preview tweaks:

chrome/browser/tab_contents/tab_contents_delegate.h

Index: chrome/browser/tab_contents/tab_contents_delegate.h
diff --git a/chrome/browser/tab_contents/tab_contents_delegate.h b/chrome/browser/tab_contents/tab_contents_delegate.h
index 56b4c9f6240e6f437eab17b9df1e23ba2730747d..6baa57cdb7f4f8473239d18ccb7ddc6772b833bf 100644
--- a/chrome/browser/tab_contents/tab_contents_delegate.h
+++ b/chrome/browser/tab_contents/tab_contents_delegate.h
@@ -285,11 +285,6 @@ class TabContentsDelegate : public AutomationResourceRoutingDelegate {
   // PDF using the internal PDF plugin.
   virtual void ContentTypeChanged(TabContents* source);
 
-  // Sent when the user does a gesture that results in committing the match
-  // preview. The delegate should replace |source| with the |source|'s match
-  // preview TabContents.
-  virtual void CommitMatchPreview(TabContents* source);
-
   // Notifies the delegate that the page has a suggest result.
   virtual void OnSetSuggestResult(int32 page_id, const std::string& result);