Add IPC support for gfx::ColorSpace

ui/gfx/color_space.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_GFX_COLOR_SPACE_H_
 #define UI_GFX_COLOR_SPACE_H_
 
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "build/build_config.h"
 #include "ui/gfx/gfx_export.h"
 
 #if defined(OS_MACOSX)
 #include <CoreGraphics/CGColorSpace.h>
 #endif
 
+namespace IPC {
+template <class P>
+struct ParamTraits;
+}  // namespace IPC
+
 namespace gfx {
 
 class GFX_EXPORT ColorSpace {
  public:
   ColorSpace();
   ColorSpace(ColorSpace&& other);
   ColorSpace(const ColorSpace& other);
   ColorSpace& operator=(const ColorSpace& other);
   ~ColorSpace();
   bool operator==(const ColorSpace& other) const;
@@ skipping 15 matching lines @@
   // other functions to read. This should not be called on the UI or IO thread.
   static void UpdateCachedProfilesOnBackgroundThread();
   static bool CachedProfilesNeedUpdate();
 #endif
 
   static bool IsValidProfileLength(size_t length);
 
  private:
   struct Key;
   class GlobalData;
-  friend struct Key;
-  friend class GlobalData;
   enum class Type {
     UNDEFINED,
     ICC_PROFILE,
+    LAST = ICC_PROFILE
   };
   Type type_ = Type::UNDEFINED;
 
   // GlobalData stores large or expensive-to-compute data about a color space
   // (e.g, ICC profile). This structure is shared by all identical ColorSpace
   // objects in the process. It is lazily initialized for named color spaces.
   mutable scoped_refptr<GlobalData> global_data_;
+
+  friend struct Key;
+  friend class GlobalData;
+  friend struct IPC::ParamTraits<gfx::ColorSpace>;
+  friend struct IPC::ParamTraits<gfx::ColorSpace::Type>;
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_COLOR_SPACE_H_