Move GetDocument method from WebFrame to WebLocalFrame.

chrome/renderer/chrome_content_renderer_client.cc

Index: chrome/renderer/chrome_content_renderer_client.cc
diff --git a/chrome/renderer/chrome_content_renderer_client.cc b/chrome/renderer/chrome_content_renderer_client.cc
index fedd53caf15a4da66eece46d91d1c156f233c924..a45075139658964d24412ee7345171af8a8d8e28 100644
--- a/chrome/renderer/chrome_content_renderer_client.cc
+++ b/chrome/renderer/chrome_content_renderer_client.cc
@@ -782,7 +782,9 @@ WebPlugin* ChromeContentRendererClient::CreatePlugin(
           if (is_nacl_mime_type || is_pnacl_mime_type) {
             // Normal NaCl/PNaCl embed. The app URL is the page URL.
             manifest_url = url;
-            app_url = frame->Top()->GetDocument().Url();
+            // TODO(lukasza, alexmos): https://crbug.com/728295: Don't assume
+            // that the top frame is local.
+            app_url = frame->Top()->ToWebLocalFrame()->GetDocument().Url();
           } else {
             // NaCl is being invoked as a content handler. Look up the NaCl
             // module using the MIME type. The app URL is the manifest URL.
@@ -1367,9 +1369,8 @@ bool ChromeContentRendererClient::ShouldGatherSiteIsolationStats() const {
 
 std::unique_ptr<blink::WebContentSettingsClient>
 ChromeContentRendererClient::CreateWorkerContentSettingsClient(
-    content::RenderFrame* render_frame,
-    WebFrame* frame) {
-  return base::MakeUnique<WorkerContentSettingsClient>(render_frame, frame);
+    content::RenderFrame* render_frame) {
+  return base::MakeUnique<WorkerContentSettingsClient>(render_frame);
 }
 
 bool ChromeContentRendererClient::IsPluginAllowedToUseDevChannelAPIs() {