Added the selected text marker range to the dictionary for the selection change notification

content/browser/accessibility/browser_accessibility_manager.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_MANAGER_H_
 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_H_
 
 #include <stdint.h>
 
 #include <vector>
@@ skipping 233 matching lines @@
 #endif
 
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS) && defined(USE_X11)
   BrowserAccessibilityManagerAuraLinux*
       ToBrowserAccessibilityManagerAuraLinux();
 #endif
 
   // Return the object that has focus, if it's a descendant of the
   // given root (inclusive). Does not make a new reference.
   virtual BrowserAccessibility* GetFocus(BrowserAccessibility* root);
+  virtual BrowserAccessibility* GetFocus();

[dmazzoni, 2016/02/18 21:16:42]

fwiw, this will conflict with a change i'm hoping to land today that removes the
need for the "root" argument. please just use GetFocus(GetRoot()) for now, and
after my change lands it will just be GetFocus().

 
   // Return the descentant of the given root that has focus, or that object's
   // active descendant if it has one.
   BrowserAccessibility* GetActiveDescendantFocus(BrowserAccessibility* root);
 
   // Returns true if native focus is anywhere in this WebContents or not.
   bool NativeViewHasFocus();
 
   // True by default, but some platforms want to treat the root
   // scroll offsets separately.
@@ skipping 122 matching lines @@
   // node within that parent tree. It's computed as needed and cached for
   // speed so that it can be accessed quickly if it hasn't changed.
   int parent_node_id_from_parent_tree_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_H_