Fix RenderWidgetHostViewGuest leak.

content/browser/frame_host/render_widget_host_view_guest_unittest.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 "content/browser/frame_host/render_widget_host_view_guest.h"
 
 #include "base/basictypes.h"
 #include "base/message_loop/message_loop.h"
 #include "content/browser/renderer_host/render_widget_host_delegate.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
@@ skipping 16 matching lines @@
  public:
   RenderWidgetHostViewGuestTest() {}
 
   virtual void SetUp() {
     browser_context_.reset(new TestBrowserContext);
     MockRenderProcessHost* process_host =
         new MockRenderProcessHost(browser_context_.get());
     widget_host_ = new RenderWidgetHostImpl(
         &delegate_, process_host, MSG_ROUTING_NONE, false);
     view_ = new RenderWidgetHostViewGuest(
-        widget_host_, NULL, new TestRenderWidgetHostView(widget_host_));
+        widget_host_, NULL,
+        (new TestRenderWidgetHostView(widget_host_))->GetWeakPtr());
   }
 
   virtual void TearDown() {
     if (view_)
       view_->Destroy();
     delete widget_host_;
 
     browser_context_.reset();
 
     message_loop_.DeleteSoon(FROM_HERE, browser_context_.release());
@@ skipping 24 matching lines @@
   ASSERT_FALSE(view_->IsShowing());
 
   view_->WasShown();
   ASSERT_TRUE(view_->IsShowing());
 
   view_->WasHidden();
   ASSERT_FALSE(view_->IsShowing());
 }
 
 }  // namespace content