IDL: Autogenerate thunk .cc file for PPB_View

ppapi/api/dev/ppb_view_dev.idl

 /* 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.
  */
 
 /* This file contains the <code>PPB_View_Dev</code> interface. */
+
+[generate_thunk]
+
 label Chrome {
   M22 = 0.1
 };
 
 /* PPB_View_Dev interface */
 interface PPB_View_Dev {
   /**
    * GetDeviceScale returns the scale factor between device pixels and DIPs
    * (also known as logical pixels or UI pixels on some platforms). This allows
    * the developer to render their contents at device resolution, even as
@@ skipping 17 matching lines @@
    *
    * @param[in] resource A <code>PP_Resource</code> corresponding to a
    * <code>PPB_View</code> resource.
    *
    * @return css_scale A <code>float</code> value representing the number of
    * DIPs per CSS pixel. If the resource is invalid, the value will be 0.0.
    */
   float_t GetCSSScale([in] PP_Resource resource);
 };