Remove last extension dependencies from content.

content/browser/renderer_host/render_message_filter.cc

Index: content/browser/renderer_host/render_message_filter.cc
diff --git a/content/browser/renderer_host/render_message_filter.cc b/content/browser/renderer_host/render_message_filter.cc
index 42806c0eacf9b9ff8722ad7065058934d8e5358a..93b053c30c64592bcf7a25ad28e46b3e5f38c6f0 100644
--- a/content/browser/renderer_host/render_message_filter.cc
+++ b/content/browser/renderer_host/render_message_filter.cc
@@ -15,7 +15,6 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/download/download_types.h"
 #include "chrome/browser/download/download_util.h"
-#include "chrome/browser/extensions/extension_info_map.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension.h"
@@ -385,14 +384,11 @@ void RenderMessageFilter::OnMsgCreateWindow(
     int* route_id, int64* cloned_session_storage_namespace_id) {
   // If the opener is trying to create a background window but doesn't have

[jam, 2011/06/08 00:18:17]

I just realized, BackgroundContents is a chrome concept.  Can you move this
whole block over to chrome?  i.e. ContentBrowserClient::CanCreateWindow

[Matt Perry, 2011/06/08 00:33:37]

Done.

   // the appropriate permission, fail the attempt.
-  if (params.window_container_type == WINDOW_CONTAINER_TYPE_BACKGROUND) {
-    const Extension* extension =
-        extension_info_map_->extensions().GetByURL(params.opener_url);
-    if (!extension ||
-        !extension->HasApiPermission(Extension::kBackgroundPermission)) {
-      *route_id = MSG_ROUTING_NONE;
-      return;
-    }
+  if (params.window_container_type == WINDOW_CONTAINER_TYPE_BACKGROUND &&
+      !content::GetContentClient()->browser()->
+          CheckBackgroundPermission(params.opener_url, resource_context_)) {
+    *route_id = MSG_ROUTING_NONE;
+    return;
   }
 
   *cloned_session_storage_namespace_id =