Move the ViewType enum to extensions\common.

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
===================================================================
--- chrome/browser/chrome_content_browser_client.cc	(revision 191609)
+++ chrome/browser/chrome_content_browser_client.cc	(working copy)
@@ -1846,7 +1846,7 @@
     web_prefs->force_compositing_mode = true;
 
   WebContents* web_contents = WebContents::FromRenderViewHost(rvh);
-  chrome::ViewType view_type = chrome::GetViewType(web_contents);
+  extensions::ViewType view_type = chrome::GetViewType(web_contents);
   ExtensionService* service =
       extensions::ExtensionSystem::Get(profile)->extension_service();
   if (service) {
@@ -1862,9 +1862,9 @@
     }
   }
 
-  if (view_type == chrome::VIEW_TYPE_NOTIFICATION) {
+  if (view_type == extensions::VIEW_TYPE_NOTIFICATION) {
     web_prefs->allow_scripts_to_close_windows = true;
-  } else if (view_type == chrome::VIEW_TYPE_BACKGROUND_CONTENTS) {
+  } else if (view_type == extensions::VIEW_TYPE_BACKGROUND_CONTENTS) {
     // Disable all kinds of acceleration for background pages.
     // See http://crbug.com/96005 and http://crbug.com/96006
     web_prefs->force_compositing_mode = false;