Migrate accessibility from RenderView to RenderFrame.

content/browser/renderer_host/render_widget_host_view_base.h

Index: content/browser/renderer_host/render_widget_host_view_base.h
diff --git a/content/browser/renderer_host/render_widget_host_view_base.h b/content/browser/renderer_host/render_widget_host_view_base.h
index 42f021faaa03ebc9efd691d2837ed4286b2141f7..1d5040d7cc98d20752cf87d41da39502c6896fb9 100644
--- a/content/browser/renderer_host/render_widget_host_view_base.h
+++ b/content/browser/renderer_host/render_widget_host_view_base.h
@@ -49,6 +49,7 @@ struct WebScreenInfo;
 }
 
 namespace content {
+class BrowserAccessibilityDelegate;
 class BrowserAccessibilityManager;
 class SyntheticGesture;
 class SyntheticGestureTarget;
@@ -149,7 +150,8 @@ class CONTENT_EXPORT RenderWidgetHostViewBase : public RenderWidgetHostView,
   // Create a BrowserAccessibilityManager for this view if it's possible to
   // create one and if one doesn't exist already. Some ports may not create
   // one depending on the current state.
-  virtual void CreateBrowserAccessibilityManagerIfNeeded();
+  virtual void CreateBrowserAccessibilityManagerIfNeeded(
+      BrowserAccessibilityDelegate* delegate);
 
   virtual void OnAccessibilitySetFocus(int acc_obj_id);
   virtual void AccessibilityShowMenu(int acc_obj_id);