Revert of Migrate accessibility from RenderView to RenderFrame.

content/browser/accessibility/accessibility_tree_formatter.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/accessibility/accessibility_tree_formatter.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
-#include "content/browser/web_contents/web_contents_impl.h"
+#include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 
 namespace content {
 namespace {
 const int kIndentSpaces = 4;
 const char* kSkipString = "@NO_DUMP";
 const char* kChildrenDictAttr = "children";
 }
 
 AccessibilityTreeFormatter::AccessibilityTreeFormatter(
     BrowserAccessibility* root)
     : root_(root) {
   Initialize();
 }
 
 // static
 AccessibilityTreeFormatter* AccessibilityTreeFormatter::Create(
-    WebContents* web_contents) {
+    RenderViewHost* rvh) {
+  RenderWidgetHostViewBase* host_view = static_cast<RenderWidgetHostViewBase*>(
+      WebContents::FromRenderViewHost(rvh)->GetRenderWidgetHostView());
+
   BrowserAccessibilityManager* manager =
-      static_cast<WebContentsImpl*>(web_contents)->
-          GetRootBrowserAccessibilityManager();
+      host_view->GetBrowserAccessibilityManager();
   if (!manager)
     return NULL;
 
   BrowserAccessibility* root = manager->GetRoot();
   return new AccessibilityTreeFormatter(root);
 }
 
 
 AccessibilityTreeFormatter::~AccessibilityTreeFormatter() {
 }
@@ skipping 131 matching lines @@
   if (attr.empty())
     return;
   if (!MatchesFilters(attr, include_by_default))
     return;
   if (!line->empty())
     *line += base::ASCIIToUTF16(" ");
   *line += attr;
 }
 
 }  // namespace content