Use Blink accessibility enums in Chromium

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 538f9d4e7b77c11a65b429ed10290475cd70eeb6..93799eaf60c5029ae0dbb5ed5f8186aac7747e23 100644
--- a/content/renderer/accessibility/renderer_accessibility.h
+++ b/content/renderer/accessibility/renderer_accessibility.h
@@ -7,10 +7,9 @@
 
 #include "content/common/accessibility_messages.h"
 #include "content/public/renderer/render_view_observer.h"
-#include "third_party/WebKit/public/web/WebAccessibilityNotification.h"
+#include "third_party/WebKit/public/web/WebAXObject.h"
 
 namespace WebKit {
-class WebAccessibilityObject;
 class WebDocument;
 };
 
@@ -55,9 +54,8 @@ class CONTENT_EXPORT RendererAccessibility : public RenderViewObserver {
   virtual ~RendererAccessibility();
 
   // Called when an accessibility notification occurs in WebKit.
-  virtual void HandleWebAccessibilityNotification(
-      const WebKit::WebAccessibilityObject& obj,
-      WebKit::WebAccessibilityNotification notification) = 0;
+  virtual void HandleWebAccessibilityEvent(
+      const WebKit::WebAXObject& obj, WebKit::WebAXEvent event) = 0;
 
  protected:
   // Returns the main top-level document for this page, or NULL if there's
@@ -65,8 +63,7 @@ class CONTENT_EXPORT RendererAccessibility : public RenderViewObserver {
   WebKit::WebDocument GetMainDocument();
 
 #ifndef NDEBUG
-  const std::string AccessibilityNotificationToString(
-      AccessibilityNotification notification);
+  const std::string AccessibilityEventToString(WebKit::WebAXEvent event);
 #endif
 
   // The RenderViewImpl that owns us.