Route Text Layout Change IPCs to the Active RenderWidgetHost

content/browser/renderer_host/render_widget_host_view_aura.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 "content/browser/renderer_host/render_widget_host_view_aura.h"
 
 #include <set>
 #include <utility>
 
 #include "base/auto_reset.h"
@@ skipping 1588 matching lines @@
   // TODO(wjmaclean): can host_ ever be null?
   if (!host_)
     return;
 
   // TODO(suzhe): implement the newly added “locale” property of HTML DOM
   // TextEvent.
 }
 
 bool RenderWidgetHostViewAura::ChangeTextDirectionAndLayoutAlignment(
       base::i18n::TextDirection direction) {
-  // TODO(wjmaclean): can host_ ever be null?
-  if (!host_)
+  if (!GetTextInputManager() && !GetTextInputManager()->GetActiveWidget())
     return false;
-  host_->UpdateTextDirection(
-      direction == base::i18n::RIGHT_TO_LEFT ?
-      blink::WebTextDirectionRightToLeft :
-      blink::WebTextDirectionLeftToRight);
-  host_->NotifyTextDirection();
+
+  GetTextInputManager()->GetActiveWidget()->UpdateTextDirection(
+      direction == base::i18n::RIGHT_TO_LEFT
+          ? blink::WebTextDirectionRightToLeft
+          : blink::WebTextDirectionLeftToRight);
+  GetTextInputManager()->GetActiveWidget()->NotifyTextDirection();
   return true;
 }
 
 void RenderWidgetHostViewAura::ExtendSelectionAndDelete(
     size_t before, size_t after) {
   RenderFrameHostImpl* rfh = GetFocusedFrame();
   if (rfh)
     rfh->ExtendSelectionAndDelete(before, after);
 }
 
@@ skipping 1374 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewBase, public:
 
 // static
 void RenderWidgetHostViewBase::GetDefaultScreenInfo(WebScreenInfo* results) {
   GetScreenInfoForWindow(results, NULL);
 }
 
 }  // namespace content