Draggable region support for frameless app window on Windows.

chrome/browser/ui/base_window.h

Index: chrome/browser/ui/base_window.h
diff --git a/chrome/browser/ui/base_window.h b/chrome/browser/ui/base_window.h
index 1d09b3600138a639f7b84d0bf5d75711b404db45..70c8ce6542af498de48cfecc09b5853a673009e5 100644
--- a/chrome/browser/ui/base_window.h
+++ b/chrome/browser/ui/base_window.h
@@ -70,13 +70,6 @@ class BaseWindow {
   // Sets the window's size and position to the specified values.
   virtual void SetBounds(const gfx::Rect& bounds) = 0;
 
-  // The specified region will act like the window's caption area, meaning that
-  // the user will be able to move the window by dragging in that area. (On
-  // Windows, they will also be able to maximize the window by double-clicking
-  // it, and show the system menu by right-clicking it.)
-  // Currently only implemented by ShellWindow.
-  virtual void SetDraggableRegion(SkRegion* region) = 0;
-
   // Flashes the taskbar item associated with this window.
   // Set |flash| to true to initiate flashing, false to stop flashing.
   virtual void FlashFrame(bool flash) = 0;