NOT YET READY: Improve granularity of window namespaces in Blink.

chrome/renderer/extensions/chrome_extensions_renderer_client.cc

 // Copyright 2014 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 "chrome/renderer/extensions/chrome_extensions_renderer_client.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "chrome/common/chrome_isolated_world_ids.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/common/extensions/extension_metrics.h"
 #include "chrome/common/extensions/extension_process_policy.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/renderer/chrome_render_thread_observer.h"
 #include "chrome/renderer/extensions/chrome_extensions_dispatcher_delegate.h"
 #include "chrome/renderer/extensions/renderer_permissions_policy_delegate.h"
 #include "chrome/renderer/extensions/resource_request_policy.h"
 #include "chrome/renderer/media/cast_ipc_dispatcher.h"
 #include "content/public/common/content_constants.h"
 #include "content/public/common/content_switches.h"
+#include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_thread.h"
 #include "extensions/common/constants.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/extension_set.h"
 #include "extensions/common/switches.h"
 #include "extensions/renderer/dispatcher.h"
 #include "extensions/renderer/extension_frame_helper.h"
 #include "extensions/renderer/extension_helper.h"
 #include "extensions/renderer/extensions_render_frame_observer.h"
 #include "extensions/renderer/guest_view/extensions_guest_view_container.h"
@@ skipping 256 matching lines @@
 ChromeExtensionsRendererClient::CreateBrowserPluginDelegate(
     content::RenderFrame* render_frame,
     const std::string& mime_type,
     const GURL& original_url) {
   if (mime_type == content::kBrowserPluginMimeType)
     return new extensions::ExtensionsGuestViewContainer(render_frame);
   return new extensions::MimeHandlerViewContainer(render_frame, mime_type,
                                                   original_url);
 }
 
+// static
+blink::WebFrame* ChromeExtensionsRendererClient::FindFrame(
+    blink::WebLocalFrame* relative_to_frame,
+    const std::string& name) {
+  content::RenderFrame* result = extensions::ExtensionFrameHelper::FindFrame(
+      content::RenderFrame::FromWebFrame(relative_to_frame), name);
+  return result ? result->GetWebFrame() : nullptr;
+}
+
 void ChromeExtensionsRendererClient::RunScriptsAtDocumentStart(
     content::RenderFrame* render_frame) {
   extension_dispatcher_->RunScriptsAtDocumentStart(render_frame);
 }
 
 void ChromeExtensionsRendererClient::RunScriptsAtDocumentEnd(
     content::RenderFrame* render_frame) {
   extension_dispatcher_->RunScriptsAtDocumentEnd(render_frame);
 }
 
 void ChromeExtensionsRendererClient::RunScriptsAtDocumentIdle(
     content::RenderFrame* render_frame) {
   extension_dispatcher_->RunScriptsAtDocumentIdle(render_frame);
 }