views: Convert IsFocusable() to just focusable() since it's just a simple accessor.

chrome/browser/ui/views/tab_contents/native_tab_contents_container_aura.cc

 // Copyright (c) 2011 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/views/tab_contents/native_tab_contents_container_aura.h"
 
 #include "chrome/browser/ui/view_ids.h"
 #include "chrome/browser/ui/views/tab_contents/tab_contents_container.h"
 #include "chrome/browser/ui/views/tab_contents/tab_contents_view_views.h"
 #include "content/browser/tab_contents/interstitial_page.h"
@@ skipping 76 matching lines @@
     const views::KeyEvent& e) {
   // Don't look-up accelerators or tab-traversal if we are showing a non-crashed
   // TabContents.
   // We'll first give the page a chance to process the key events.  If it does
   // not process them, they'll be returned to us and we'll treat them as
   // accelerators then.
   return container_->tab_contents() &&
          !container_->tab_contents()->is_crashed();
 }
 
-bool NativeTabContentsContainerAura::IsFocusable() const {
+bool NativeTabContentsContainerAura::IsFocusableInRootView() const {
   // We need to be focusable when our contents is not a view hierarchy, as
   // clicking on the contents needs to focus us.
   return container_->tab_contents() != NULL;
 }
 
 void NativeTabContentsContainerAura::OnFocus() {
   if (container_->tab_contents())
     container_->tab_contents()->Focus();
 }
 
@@ skipping 33 matching lines @@
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // NativeTabContentsContainer, public:
 
 // static
 NativeTabContentsContainer* NativeTabContentsContainer::CreateNativeContainer(
     TabContentsContainer* container) {
   return new NativeTabContentsContainerAura(container);
 }