Implement put_accvalue for textfields and location bar.

ui/views/controls/textfield/textfield.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 UI_VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_H_
 #define UI_VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
+#include "base/memory/weak_ptr.h"
 #include "base/strings/string16.h"
 #include "base/time/time.h"
 #include "build/build_config.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/base/ime/text_input_type.h"
 #include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/gfx/font_list.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/text_constants.h"
 #include "ui/views/controls/textfield/native_textfield_wrapper.h"
@@ skipping 256 matching lines @@
       const ViewHierarchyChangedDetails& details) OVERRIDE;
   virtual const char* GetClassName() const OVERRIDE;
 
   // The object that actually implements the native text field.
   NativeTextfieldWrapper* native_wrapper_;
 
  private:
   // Returns the insets to the rectangle where text is actually painted.
   gfx::Insets GetTextInsets() const;
 
+  // Handles a request to change the value of this text field from software
+  // using an accessibility API (typically automation software, screen readers
+  // don't normally use this). Sets the value and clears the selection.
+  void AccessibilitySetValue(const string16& new_value);
+
   // This is the current listener for events from this Textfield.
   TextfieldController* controller_;
 
   // The mask of style options for this Textfield.
   StyleFlags style_;
 
   // The fonts used to render the text in the Textfield.
   gfx::FontList font_list_;
 
   // The text displayed in the Textfield.
@@ skipping 39 matching lines @@
 
   // The accessible name of the text field.
   string16 accessible_name_;
 
   // The input type of this text field.
   ui::TextInputType text_input_type_;
 
   // The duration to reveal the last typed char for obscured textfields.
   base::TimeDelta obscured_reveal_duration_;
 
+  // Used to bind callback functions to this object.
+  base::WeakPtrFactory<Textfield> weak_ptr_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(Textfield);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_H_