Make RenderFrame(Host) own a RenderWidget(Host).

content/browser/frame_host/render_widget_host_view_child_frame.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_child_frame.h"
 
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/frame_host/cross_process_frame_connector.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/common/gpu/gpu_messages.h"
@@ skipping 135 matching lines @@
 
 void RenderWidgetHostViewChildFrame::SetIsLoading(bool is_loading) {
   NOTREACHED();
 }
 
 void RenderWidgetHostViewChildFrame::TextInputTypeChanged(
     ui::TextInputType type,
     ui::TextInputMode input_mode,
     bool can_compose_inline,
     int flags) {
-  NOTREACHED();
+  // TODO: Implement.

[Charlie Reis, 2014/12/18 18:04:13]

nit: TODO(kenrb)

(All TODOs in Chromium code should have an owner, just as the person to ask if
you want more info to fix it.)

[kenrb, 2015/01/05 21:15:30]

Done.

 }
 
 void RenderWidgetHostViewChildFrame::RenderProcessGone(
     base::TerminationStatus status,
     int error_code) {
   if (frame_connector_)
     frame_connector_->RenderProcessGone();
   Destroy();
 }
 
@@ skipping 144 matching lines @@
 }
 
 BrowserAccessibilityManager*
 RenderWidgetHostViewChildFrame::CreateBrowserAccessibilityManager(
     BrowserAccessibilityDelegate* delegate) {
   return BrowserAccessibilityManager::Create(
       BrowserAccessibilityManager::GetEmptyDocument(), delegate);
 }
 
 }  // namespace content