Move RequestPpapiBrokerPermission from WebContentsObserver to WebContentsDelegate.

content/browser/web_contents/web_contents_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
@@ skipping 2288 matching lines @@
                                   const std::string& name,
                                   const base::ListValue& args) {
   if (delegate_)
     delegate_->WebUISend(this, source_url, name, args);
 }
 
 void WebContentsImpl::OnRequestPpapiBrokerPermission(
     int request_id,
     const GURL& url,
     const FilePath& plugin_path) {
-  base::Callback<void(bool)> callback =
-      base::Bind(&WebContentsImpl::OnPpapiBrokerPermissionResult,
-                 base::Unretained(this), request_id);
-  ObserverListBase<WebContentsObserver>::Iterator it(observers_);
-  WebContentsObserver* observer;
-  while ((observer = it.GetNext()) != NULL) {
-    if (observer->RequestPpapiBrokerPermission(this, url, plugin_path,
-                                               callback))
-      return;
+  if (!delegate_) {
+    OnPpapiBrokerPermissionResult(request_id, false);
+    return;
   }
 
-  // Fall back to allowing the request if no observer handled it.
-  OnPpapiBrokerPermissionResult(request_id, true);
+  delegate_->RequestPpapiBrokerPermission(
+      this, url, plugin_path,
+      base::Bind(&WebContentsImpl::OnPpapiBrokerPermissionResult,
+                 base::Unretained(this), request_id));
 }
 
 void WebContentsImpl::OnPpapiBrokerPermissionResult(int request_id,
                                                     bool result) {
   RenderViewHostImpl* rvh = GetRenderViewHostImpl();
   rvh->Send(new ViewMsg_PpapiBrokerPermissionResult(rvh->GetRoutingID(),
                                                     request_id,
                                                     result));
 }
 
@@ skipping 1005 matching lines @@
 
 BrowserPluginGuest* WebContentsImpl::GetBrowserPluginGuest() {
   return browser_plugin_guest_.get();
 }
 
 BrowserPluginEmbedder* WebContentsImpl::GetBrowserPluginEmbedder() {
   return browser_plugin_embedder_.get();
 }
 
 }  // namespace content