Migrate accessibility from RenderView to RenderFrame.

content/browser/frame_host/render_frame_host_delegate.cc

Index: content/browser/frame_host/render_frame_host_delegate.cc
diff --git a/content/browser/frame_host/render_frame_host_delegate.cc b/content/browser/frame_host/render_frame_host_delegate.cc
index 3b7fad19469bda6f4ab08ff2ac010cc57f5ca07d..7c528bb547a700ef40316f28e7ed699507b54e39 100644
--- a/content/browser/frame_host/render_frame_host_delegate.cc
+++ b/content/browser/frame_host/render_frame_host_delegate.cc
@@ -6,6 +6,7 @@
 
 #include "base/strings/string16.h"
 #include "content/browser/frame_host/render_frame_host_delegate.h"
+#include "ui/gfx/native_widget_types.h"
 #include "url/gurl.h"
 
 namespace content {
@@ -34,4 +35,15 @@ WebContents* RenderFrameHostDelegate::GetAsWebContents() {
   return NULL;
 }
 
+AccessibilityMode RenderFrameHostDelegate::GetAccessibilityMode() const {
+  return AccessibilityModeOff;
+}
+
+#if defined(OS_WIN)
+gfx::NativeViewAccessible
+    RenderFrameHostDelegate::GetParentNativeViewAccessible() {
+  return NULL;
+}
+#endif  // defined(OS_WIN)
+
 }  // namespace content