Revert of Migrate accessibility from RenderView to RenderFrame.

content/browser/accessibility/browser_accessibility_manager.h

Index: content/browser/accessibility/browser_accessibility_manager.h
diff --git a/content/browser/accessibility/browser_accessibility_manager.h b/content/browser/accessibility/browser_accessibility_manager.h
index 4898e4ef7c1679cd54da1cad8cfb30245ce859cb..ae0bc30b31f81d0ef4da7a8ff16ef9555b7b4220 100644
--- a/content/browser/accessibility/browser_accessibility_manager.h
+++ b/content/browser/accessibility/browser_accessibility_manager.h
@@ -47,11 +47,11 @@
   virtual ~BrowserAccessibilityDelegate() {}
   virtual void AccessibilitySetFocus(int acc_obj_id) = 0;
   virtual void AccessibilityDoDefaultAction(int acc_obj_id) = 0;
-  virtual void AccessibilityShowMenu(const gfx::Point& global_point) = 0;
+  virtual void AccessibilityShowMenu(int acc_obj_id) = 0;
   virtual void AccessibilityScrollToMakeVisible(
-      int acc_obj_id, const gfx::Rect& subfocus) = 0;
+      int acc_obj_id, gfx::Rect subfocus) = 0;
   virtual void AccessibilityScrollToPoint(
-      int acc_obj_id, const gfx::Point& point) = 0;
+      int acc_obj_id, gfx::Point point) = 0;
   virtual void AccessibilitySetTextSelection(
       int acc_obj_id, int start_offset, int end_offset) = 0;
   virtual bool AccessibilityViewHasFocus() const = 0;
@@ -183,9 +183,6 @@
   virtual void OnRootChanged(ui::AXNode* new_root) OVERRIDE {}
 
   BrowserAccessibilityDelegate* delegate() const { return delegate_; }
-  void set_delegate(BrowserAccessibilityDelegate* delegate) {
-    delegate_ = delegate;
-  }
 
  protected:
   BrowserAccessibilityManager(