Revert of Migrate accessibility from RenderView to RenderFrame.

content/browser/accessibility/browser_accessibility_manager_win.cc

Index: content/browser/accessibility/browser_accessibility_manager_win.cc
diff --git a/content/browser/accessibility/browser_accessibility_manager_win.cc b/content/browser/accessibility/browser_accessibility_manager_win.cc
index 05e2fd507e8c73f420260a6afdd5fb419948c956..0bb3b60f948ccf4a7573c1afa27d8eda7777d9c2 100644
--- a/content/browser/accessibility/browser_accessibility_manager_win.cc
+++ b/content/browser/accessibility/browser_accessibility_manager_win.cc
@@ -55,7 +55,7 @@
     tracked_scroll_object_ = NULL;
   }
   if (accessible_hwnd_)
-    accessible_hwnd_->OnManagerDeleted(this);
+    accessible_hwnd_->OnManagerDeleted();
 }
 
 // static
@@ -75,11 +75,7 @@
 
 void BrowserAccessibilityManagerWin::SetAccessibleHWND(
     LegacyRenderWidgetHostHWND* accessible_hwnd) {
-  if (accessible_hwnd_)
-    accessible_hwnd_->OnManagerDeleted(this);
-
   accessible_hwnd_ = accessible_hwnd;
-
   if (accessible_hwnd_) {
     accessible_hwnd_->set_browser_accessibility_manager(this);
     parent_hwnd_ = accessible_hwnd_->GetParent();