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

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index 7983f7ad597a03fbe6197a2b95a28899a18d5064..31298bb5bc32fd5cb1c20d7c7dab018a8605dbb5 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -49,6 +49,7 @@
 #include "content/common/ssl_status_serialization.h"
 #include "content/common/view_messages.h"
 #include "content/common/webmessageportchannel_impl.h"
+#include "content/public/common/accessibility_mode.h"
 #include "content/public/common/bindings_policy.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_constants.h"
@@ -636,7 +637,7 @@ RenderViewImpl::RenderViewImpl(RenderViewImplParams* params)
       browser_plugin_manager_(NULL),
       media_stream_impl_(NULL),
       devtools_agent_(NULL),
-      accessibility_mode_(AccessibilityModeOff),
+      accessibility_mode_(ACCESSIBILITY_MODE_OFF),
       renderer_accessibility_(NULL),
       java_bridge_dispatcher_(NULL),
       mouse_lock_dispatcher_(NULL),
@@ -5840,9 +5841,9 @@ void RenderViewImpl::OnSetAccessibilityMode(AccessibilityMode new_mode) {
     delete renderer_accessibility_;
     renderer_accessibility_ = NULL;
   }
-  if (accessibility_mode_ == AccessibilityModeComplete)
+  if (accessibility_mode_ == ACCESSIBILITY_MODE_COMPLETE)
     renderer_accessibility_ = new RendererAccessibilityComplete(this);
-  else if (accessibility_mode_ == AccessibilityModeEditableTextOnly)
+  else if (accessibility_mode_ == ACCESSIBILITY_MODE_EDITABLE_TEXT_ONLY)
     renderer_accessibility_ = new RendererAccessibilityFocusOnly(this);
 }