Remove legacy draggable region code and refactor to share common draggable region code

chrome/browser/ui/views/extensions/shell_window_views.h

Index: chrome/browser/ui/views/extensions/shell_window_views.h
diff --git a/chrome/browser/ui/views/extensions/shell_window_views.h b/chrome/browser/ui/views/extensions/shell_window_views.h
index 2821dad14188de96bc16a037c6f68a7097e640f7..9e8980c73d1a69867453a2405d13288e7d55e4b7 100644
--- a/chrome/browser/ui/views/extensions/shell_window_views.h
+++ b/chrome/browser/ui/views/extensions/shell_window_views.h
@@ -9,7 +9,6 @@
 #include "chrome/browser/ui/extensions/native_shell_window.h"
 #include "chrome/browser/ui/extensions/shell_window.h"
 #include "chrome/browser/ui/views/unhandled_keyboard_event_handler.h"
-#include "third_party/skia/include/core/SkRegion.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/rect.h"
 #include "ui/views/widget/widget_delegate.h"
@@ -23,7 +22,6 @@ class WebContents;
 
 namespace extensions {
 class Extension;
-struct DraggableRegion;
 }
 
 namespace views {
@@ -36,9 +34,6 @@ class ShellWindowViews : public NativeShellWindow,
   ShellWindowViews(ShellWindow* shell_window,
                    const ShellWindow::CreateParams& params);
 
-  bool frameless() const { return frameless_; }
-  SkRegion* draggable_region() { return draggable_region_.get(); }
-
   // BaseWindow implementation.
   virtual bool IsActive() const OVERRIDE;
   virtual bool IsMaximized() const OVERRIDE;
@@ -110,8 +105,6 @@ class ShellWindowViews : public NativeShellWindow,
   virtual void UpdateWindowTitle() OVERRIDE;
   virtual void UpdateDraggableRegions(
       const std::vector<extensions::DraggableRegion>& regions) OVERRIDE;
-  virtual void UpdateLegacyDraggableRegions(
-      const std::vector<extensions::DraggableRegion>& regions) OVERRIDE;
   virtual void HandleKeyboardEvent(
       const content::NativeWebKeyboardEvent& event) OVERRIDE;
 
@@ -123,9 +116,6 @@ class ShellWindowViews : public NativeShellWindow,
   views::Widget* window_;
   bool is_fullscreen_;
 
-  scoped_ptr<SkRegion> draggable_region_;
-
-  bool frameless_;
   gfx::Size minimum_size_;
   gfx::Size maximum_size_;