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

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 46621eab631cb9214a1ef145dfd552358116c627..771b733ec99de5940659ee554bbd6327db515313 100644
--- a/content/browser/accessibility/browser_accessibility_state_impl.h
+++ b/content/browser/accessibility/browser_accessibility_state_impl.h
@@ -10,8 +10,8 @@
 #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 {
 
@@ -50,6 +50,9 @@ class CONTENT_EXPORT BrowserAccessibilityStateImpl
   AccessibilityMode GetAccessibilityMode();
   void SetAccessibilityMode(AccessibilityMode mode);
 
+  virtual bool GetAccessibilityEnabled() OVERRIDE;

[dmazzoni, 2013/02/27 16:41:01]

These shouldn't be needed any more, right? Let's prefer
GetAccessibilityMode/SetAccessibilityMode everywhere.

[aboxhall, 2013/02/27 18:58:50]

Oops, I thought I got rid of these. Done.

+  virtual void SetAccessibilityEnabled(bool enabled) OVERRIDE;
+
  private:
   friend class base::RefCountedThreadSafe<BrowserAccessibilityStateImpl>;
   friend struct DefaultSingletonTraits<BrowserAccessibilityStateImpl>;