Revert of Migrate accessibility from RenderView to RenderFrame.

content/public/browser/render_widget_host.h

Index: content/public/browser/render_widget_host.h
diff --git a/content/public/browser/render_widget_host.h b/content/public/browser/render_widget_host.h
index a87e3faee14f5c8126a772eb9dcd2bfb2016f0d7..049ee70d81cd3264ab8fe2f38f86c13b68a2c15a 100644
--- a/content/public/browser/render_widget_host.h
+++ b/content/public/browser/render_widget_host.h
@@ -189,6 +189,42 @@
   virtual void UnlockBackingStore() = 0;
 #endif
 
+  // Send a command to the renderer to turn on full accessibility.
+  virtual void EnableFullAccessibilityMode() = 0;
+
+  // Check whether this RenderWidget has full accessibility mode.
+  virtual bool IsFullAccessibilityModeForTesting() = 0;
+
+  // Send a command to the renderer to turn on tree only accessibility.
+  virtual void EnableTreeOnlyAccessibilityMode() = 0;
+
+  // Check whether this RenderWidget has tree-only accessibility mode.
+  virtual bool IsTreeOnlyAccessibilityModeForTesting() = 0;
+
+  // Relay a request from assistive technology to perform the default action
+  // on a given node.
+  virtual void AccessibilityDoDefaultAction(int object_id) = 0;
+
+  // Relay a request from assistive technology to set focus to a given node.
+  virtual void AccessibilitySetFocus(int object_id) = 0;
+
+  // Relay a request from assistive technology to make a given object
+  // visible by scrolling as many scrollable containers as necessary.
+  // In addition, if it's not possible to make the entire object visible,
+  // scroll so that the |subfocus| rect is visible at least. The subfocus
+  // rect is in local coordinates of the object itself.
+  virtual void AccessibilityScrollToMakeVisible(
+      int acc_obj_id, gfx::Rect subfocus) = 0;
+
+  // Relay a request from assistive technology to move a given object
+  // to a specific location, in the WebContents area coordinate space, i.e.
+  // (0, 0) is the top-left corner of the WebContents.
+  virtual void AccessibilityScrollToPoint(int acc_obj_id, gfx::Point point) = 0;
+
+  // Relay a request from assistive technology to set text selection.
+  virtual void AccessibilitySetTextSelection(
+      int acc_obj_id, int start_offset, int end_offset) = 0;
+
   // Forwards the given message to the renderer. These are called by
   // the view when it has received a message.
   virtual void ForwardMouseEvent(