Remove remaining AX code.

sky/engine/public/web/WebViewClient.h

Index: sky/engine/public/web/WebViewClient.h
diff --git a/sky/engine/public/web/WebViewClient.h b/sky/engine/public/web/WebViewClient.h
index 649549f0e12f14f8533a6175404f43bf10b6c7e4..8e98aba6d5df65560fa694dcb7a61a555b72c743 100644
--- a/sky/engine/public/web/WebViewClient.h
+++ b/sky/engine/public/web/WebViewClient.h
@@ -33,7 +33,6 @@
 
 #include "../platform/WebGraphicsContext3D.h"
 #include "../platform/WebString.h"
-#include "WebAXEnums.h"
 #include "WebContentDetectionResult.h"
 #include "WebDragOperation.h"
 #include "WebFrame.h"
@@ -45,7 +44,6 @@
 
 namespace blink {
 
-class WebAXObject;
 class WebCompositorOutputSurface;
 class WebElement;
 class WebGestureEvent;
@@ -115,13 +113,6 @@ public:
     // Returns comma separated list of accept languages.
     virtual WebString acceptLanguages() { return WebString(); }
 
-
-    // Accessibility -------------------------------------------------------
-
-    // Notifies embedder about an accessibility event.
-    virtual void postAccessibilityEvent(const WebAXObject&, WebAXEvent) { }
-
-
     // Developer tools -----------------------------------------------------
 
     // Called to notify the client that the inspector's settings were