Switch AccessibilityMode to be a bitmap

content/browser/accessibility/browser_accessibility_state_impl.h

Index: content/browser/accessibility/browser_accessibility_state_impl.h
diff --git a/content/browser/accessibility/browser_accessibility_state_impl.h b/content/browser/accessibility/browser_accessibility_state_impl.h
index 3098341ef25efeb46fef8762a7e1d3512e5fad86..76f126190e47a88eaa3d9e04a0c1cdd3472d4441 100644
--- a/content/browser/accessibility/browser_accessibility_state_impl.h
+++ b/content/browser/accessibility/browser_accessibility_state_impl.h
@@ -10,7 +10,6 @@
 #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"
 
 namespace content {
@@ -48,9 +47,9 @@ class CONTENT_EXPORT BrowserAccessibilityStateImpl
 
   virtual void UpdateHistogramsForTesting() OVERRIDE;
 
-  AccessibilityMode accessibility_mode() const { return accessibility_mode_; };
-  void SetAccessibilityMode(AccessibilityMode mode);
-
+  unsigned int accessibility_mode() const { return accessibility_mode_; };
+  void SetAccessibilityMode(unsigned int mode);
+  void SetRendererAccessibilityMode(bool on);
  private:
   friend class base::RefCountedThreadSafe<BrowserAccessibilityStateImpl>;
   friend struct DefaultSingletonTraits<BrowserAccessibilityStateImpl>;
@@ -64,7 +63,7 @@ class CONTENT_EXPORT BrowserAccessibilityStateImpl
 
   void UpdatePlatformSpecificHistograms();
 
-  AccessibilityMode accessibility_mode_;
+  unsigned int accessibility_mode_;
 
   std::vector<base::Closure> histogram_callbacks_;