Pass the size to the RenderView on creation.

chrome/browser/ui/browser.cc

 // Copyright 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 "chrome/browser/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif  // defined(OS_WIN)
@@ skipping 1461 matching lines @@
 bool Browser::TakeFocus(content::WebContents* source,
                         bool reverse) {
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_FOCUS_RETURNED_TO_BROWSER,
       content::Source<Browser>(this),
       content::NotificationService::NoDetails());
   return false;
 }
 
 gfx::Rect Browser::GetRootWindowResizerRect() const {
+  if (!window_) return gfx::Rect();

[piman, 2014/10/29 18:42:57]

In which case is this NULL? It seems to be set to !NULL in the constructor, and
never reset.

[mkosiba (inactive), 2014/10/31 14:35:05]

Done.

   return window_->GetRootWindowResizerRect();
 }
 
 void Browser::BeforeUnloadFired(WebContents* web_contents,
                                 bool proceed,
                                 bool* proceed_to_fire_unload) {
   if (is_devtools() && DevToolsWindow::HandleBeforeUnload(web_contents,
         proceed, proceed_to_fire_unload))
     return;
 
@@ skipping 1005 matching lines @@
   if (contents && !allow_js_access) {
     contents->web_contents()->GetController().LoadURL(
         target_url,
         content::Referrer(),
         ui::PAGE_TRANSITION_LINK,
         std::string());  // No extra headers.
   }
 
   return contents != NULL;
 }