Remove unnecessary check if RenderFrame::GetWebFrame() returns null.

android_webview/renderer/aw_render_view_ext.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 "android_webview/renderer/aw_render_view_ext.h"
 #include "android_webview/common/render_view_messages.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_view.h"
 #include "third_party/WebKit/public/web/WebLocalFrame.h"
 #include "third_party/WebKit/public/web/WebView.h"
@@ skipping 38 matching lines @@
   // Even without out-of-process iframes, we now create RemoteFrames for the
   // main frame when you navigate cross-process, to create a placeholder in the
   // old process. This is necessary to support things like postMessage across
   // windows that have references to each other. The RemoteFrame will
   // immediately go away if there aren't any active frames left in the old
   // process. RenderView's main frame pointer will become null in the old
   // process when it is no longer the active main frame.
   if (!webview || !main_render_frame)
     return;
 
-  gfx::Size contents_size;
-
-  blink::WebLocalFrame* main_frame = main_render_frame->GetWebFrame();
-  if (main_frame)
-    contents_size = main_frame->ContentsSize();
+  gfx::Size contents_size = main_render_frame->GetWebFrame()->ContentsSize();
 
   // Fall back to contentsPreferredMinimumSize if the mainFrame is reporting a
   // 0x0 size (this happens during initial load).
   if (contents_size.IsEmpty()) {
     contents_size = webview->ContentsPreferredMinimumSize();
   }
 
   if (contents_size == last_sent_contents_size_)
     return;
 
   last_sent_contents_size_ = contents_size;
   main_render_frame->Send(new AwViewHostMsg_OnContentsSizeChanged(
       main_render_frame->GetRoutingID(), contents_size));
 }
 
 }  // namespace android_webview