Remove TabContents from OmniboxEditController and friends.

chrome/browser/extensions/api/omnibox/omnibox_api.h

Index: chrome/browser/extensions/api/omnibox/omnibox_api.h
diff --git a/chrome/browser/extensions/api/omnibox/omnibox_api.h b/chrome/browser/extensions/api/omnibox/omnibox_api.h
index a4f14ee95523d978de13cbb12e50d51fecfd9006..ee195d435eb71ece41cb7531be2f75a0f5bfe3e7 100644
--- a/chrome/browser/extensions/api/omnibox/omnibox_api.h
+++ b/chrome/browser/extensions/api/omnibox/omnibox_api.h
@@ -13,12 +13,16 @@
 #include "chrome/browser/autocomplete/autocomplete_match.h"
 #include "chrome/browser/extensions/extension_function.h"
 
-class TabContents;
 class TemplateURL;
+
 namespace base {
 class ListValue;
 }
 
+namespace content {
+class WebContents;
+}
+
 namespace extensions {
 
 // Event router class for events related to the omnibox API.
@@ -39,7 +43,7 @@ class ExtensionOmniboxEventRouter {
 
   // The user has accepted the omnibox input.
   static void OnInputEntered(
-      TabContents* tab_contents,
+      content::WebContents* web_contents,
       const std::string& extension_id,
       const std::string& input);