Move some accessibility methods, enums and interfaces into the content/public API.

content/browser/accessibility/browser_accessibility_state_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_STATE_IMPL_H_
 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_STATE_IMPL_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/singleton.h"
-#include "content/common/view_message_enums.h"
 #include "content/public/browser/browser_accessibility_state.h"
+#include "content/public/common/accessibility_mode.h"
 
 namespace content {
 
 // The BrowserAccessibilityState class is used to determine if Chrome should be
 // customized for users with assistive technology, such as screen readers. We
 // modify the behavior of certain user interfaces to provide a better experience
 // for screen reader users. The way we detect a screen reader program is
 // different for each platform.
 //
 // Screen Reader Detection
@@ skipping 15 matching lines @@
 
   static BrowserAccessibilityStateImpl* GetInstance();
 
   virtual void OnAccessibilityEnabledManually() OVERRIDE;
   virtual void OnScreenReaderDetected() OVERRIDE;
   virtual bool IsAccessibleBrowser() OVERRIDE;
   virtual void AddHistogramCallback(base::Closure callback) OVERRIDE;
 
   virtual void UpdateHistogramsForTesting() OVERRIDE;
 
-  AccessibilityMode GetAccessibilityMode();
-  void SetAccessibilityMode(AccessibilityMode mode);
+  virtual AccessibilityMode GetAccessibilityMode() OVERRIDE;
+  virtual void SetAccessibilityMode(AccessibilityMode mode) OVERRIDE;
 
  private:
   friend class base::RefCountedThreadSafe<BrowserAccessibilityStateImpl>;
   friend struct DefaultSingletonTraits<BrowserAccessibilityStateImpl>;
 
   // Called a short while after startup to allow time for the accessibility
   // state to be determined. Updates histograms with the current state.
   void UpdateHistograms();
 
   // Leaky singleton, destructor generally won't be called.
   virtual ~BrowserAccessibilityStateImpl();
 
   void UpdatePlatformSpecificHistograms();
 
   AccessibilityMode accessibility_mode_;
 
   std::vector<base::Closure> histogram_callbacks_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityStateImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_STATE_IMPL_H_