Remove undefined method AXObjectCache::focusedObject.

third_party/WebKit/Source/core/dom/AXObjectCache.h

Index: third_party/WebKit/Source/core/dom/AXObjectCache.h
diff --git a/third_party/WebKit/Source/core/dom/AXObjectCache.h b/third_party/WebKit/Source/core/dom/AXObjectCache.h
index 712aa0cdb8e48294e181a9ebe98190c7a060f35c..a853d19968b2212b494e04b35b903a9d0044b084 100644
--- a/third_party/WebKit/Source/core/dom/AXObjectCache.h
+++ b/third_party/WebKit/Source/core/dom/AXObjectCache.h
@@ -36,7 +36,6 @@ typedef unsigned AXID;
 namespace blink {
 
 class AbstractInlineTextBox;
-class AXObject;
 class FrameView;
 class HTMLCanvasElement;
 class HTMLOptionElement;
@@ -51,8 +50,6 @@ class CORE_EXPORT AXObjectCache
  public:
   static AXObjectCache* create(Document&);
 
-  static AXObject* focusedObject();
-
   virtual ~AXObjectCache();
   DEFINE_INLINE_VIRTUAL_TRACE() {}