Migrate accessibility from RenderView to RenderFrame.

content/renderer/accessibility/renderer_accessibility.h

Index: content/renderer/accessibility/renderer_accessibility.h
diff --git a/content/renderer/accessibility/renderer_accessibility.h b/content/renderer/accessibility/renderer_accessibility.h
index 1f9fd3614e05b0d0901567312e4cce53172fb0aa..c7fe4167e847334514267f2f571df86eaeefe7c9 100644
--- a/content/renderer/accessibility/renderer_accessibility.h
+++ b/content/renderer/accessibility/renderer_accessibility.h
@@ -14,7 +14,7 @@ class WebDocument;
 };
 
 namespace content {
-class RenderViewImpl;
+class RenderFrameImpl;
 
 enum RendererAccessibilityType {
   // Turns on Blink accessibility and provides a full accessibility
@@ -60,7 +60,7 @@ enum RendererAccessibilityType {
 //
 class CONTENT_EXPORT RendererAccessibility : public RenderViewObserver {
  public:
-  explicit RendererAccessibility(RenderViewImpl* render_view);
+  explicit RendererAccessibility(RenderFrameImpl* render_frame);
   virtual ~RendererAccessibility();
 
   // Called when an accessibility notification occurs in Blink.
@@ -80,8 +80,8 @@ class CONTENT_EXPORT RendererAccessibility : public RenderViewObserver {
   const std::string AccessibilityEventToString(ui::AXEvent event);
 #endif
 
-  // The RenderViewImpl that owns us.
-  RenderViewImpl* render_view_;
+  // The RenderFrameImpl that owns us.
+  RenderFrameImpl* render_frame_;
 
   // True if verbose logging of accessibility events is on.
   bool logging_;