Removing defunct code around PureViews.

ui/views/widget/widget.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_WIDGET_WIDGET_H_
 #define UI_VIEWS_WIDGET_WIDGET_H_
 #pragma once
 
 #include <set>
 #include <stack>
@@ skipping 200 matching lines @@
   static void CloseAllSecondaryWidgets();
 
   // Converts a rectangle from one Widget's coordinate system to another's.
   // Returns false if the conversion couldn't be made, because either these two
   // Widgets do not have a common ancestor or they are not on the screen yet.
   // The value of |*rect| won't be changed when false is returned.
   static bool ConvertRect(const Widget* source,
                           const Widget* target,
                           gfx::Rect* rect);
 
-  // SetPureViews and IsPureViews update and return the state of a global
-  // setting that tracks whether to use available pure Views implementations.
-  static void SetPureViews(bool pure);
-  static bool IsPureViews();
-
   // Retrieves the Widget implementation associated with the given
   // NativeView or Window, or NULL if the supplied handle has no associated
   // Widget.
   static Widget* GetWidgetForNativeView(gfx::NativeView native_view);
   static Widget* GetWidgetForNativeWindow(gfx::NativeWindow native_window);
 
   // Retrieves the top level widget in a native view hierarchy
   // starting at |native_view|. Top level widget is a widget with TYPE_WINDOW,
   // TYPE_PANEL, TYPE_WINDOW_FRAMELESS, POPUP or MENU and has its own
   // focus manager. This may be itself if the |native_view| is top level,
@@ skipping 541 matching lines @@
   // duplicate move events even though the mouse hasn't moved.
   bool last_mouse_event_was_move_;
   gfx::Point last_mouse_event_position_;
 
   DISALLOW_COPY_AND_ASSIGN(Widget);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_WIDGET_H_