Stretching NativeViewHost, and misc tab capture fixes.

ui/views/controls/native/native_view_host_wrapper.h

 // Copyright (c) 2011 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_NATIVE_NATIVE_VIEW_HOST_WRAPPER_H_
 #define UI_VIEWS_CONTROLS_NATIVE_NATIVE_VIEW_HOST_WRAPPER_H_
 
 #include "ui/gfx/native_widget_types.h"
 #include "ui/views/views_export.h"
 
@@ skipping 34 matching lines @@
 
   // Whether or not a clip has been installed on the wrapped gfx::NativeView.
   virtual bool HasInstalledClip() = 0;
 
   // Removes the clip installed on the gfx::NativeView by way of InstallClip. A
   // following call to ShowWidget should occur after calling this method to
   // position the gfx::NativeView correctly, since the clipping process may have
   // adjusted its position.
   virtual void UninstallClip() = 0;
 
-  // Shows the gfx::NativeView at the specified position (relative to the parent
-  // native view).
-  virtual void ShowWidget(int x, int y, int w, int h) = 0;
+  // Shows the gfx::NativeView within the specified region (relative to the
+  // parent native view) and with the given rendering size. The content will
+  // appear scaled if the |render_w| or |render_h| are different from |w| or
+  // |h|.
+  virtual void ShowWidget(int x,
+                          int y,
+                          int w,
+                          int h,
+                          int render_w,
+                          int render_h) = 0;
 
   // Hides the gfx::NativeView. NOTE: this may be invoked when the native view
   // is already hidden.
   virtual void HideWidget() = 0;
 
   // Sets focus to the gfx::NativeView.
   virtual void SetFocus() = 0;
 
   // Return the native view accessible corresponding to the wrapped native
   // view.
   virtual gfx::NativeViewAccessible GetNativeViewAccessible() = 0;
 
   // Returns the native cursor corresponding to the point (x, y)
   // in the native view.
   virtual gfx::NativeCursor GetCursor(int x, int y) = 0;
 
   // Creates a platform-specific instance of an object implementing this
   // interface.
   static NativeViewHostWrapper* CreateWrapper(NativeViewHost* host);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_NATIVE_NATIVE_VIEW_HOST_WRAPPER_H_