Move GPU messages to content. I've also switched the IPC structs to use the ...

content/common/common_param_traits.h

Index: content/common/common_param_traits.h
===================================================================
--- content/common/common_param_traits.h	(revision 77652)
+++ content/common/common_param_traits.h	(working copy)
@@ -27,11 +27,18 @@
 
 // TODO(erg): The following headers are historical and only work because
 // their definitions are inlined, which also needs to be fixed.
+#include "ui/gfx/native_widget_types.h"
 #include "webkit/glue/resource_type.h"
 
 // Forward declarations.
 class GURL;
 
+namespace gfx {
+class Point;
+class Rect;
+class Size;
+}  // namespace gfx
+
 namespace net {
 class HttpResponseHeaders;
 class HostPortPair;
@@ -122,6 +129,62 @@
   typedef int Type;
 };
 
+template <>
+struct ParamTraits<gfx::Point> {
+  typedef gfx::Point param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, void** iter, param_type* r);
+  static void Log(const param_type& p, std::string* l);
+};
+
+template <>
+struct ParamTraits<gfx::Size> {
+  typedef gfx::Size param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, void** iter, param_type* r);
+  static void Log(const param_type& p, std::string* l);
+};
+
+template <>
+struct ParamTraits<gfx::Rect> {
+  typedef gfx::Rect param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, void** iter, param_type* r);
+  static void Log(const param_type& p, std::string* l);
+};
+
+template <>
+struct ParamTraits<gfx::NativeWindow> {
+  typedef gfx::NativeWindow param_type;
+  static void Write(Message* m, const param_type& p) {
+#if defined(OS_WIN)
+    // HWNDs are always 32 bits on Windows, even on 64 bit systems.
+    m->WriteUInt32(reinterpret_cast<uint32>(p));
+#else
+    m->WriteData(reinterpret_cast<const char*>(&p), sizeof(p));
+#endif
+  }
+  static bool Read(const Message* m, void** iter, param_type* r) {
+#if defined(OS_WIN)
+    return m->ReadUInt32(iter, reinterpret_cast<uint32*>(r));
+#else
+    const char *data;
+    int data_size = 0;
+    bool result = m->ReadData(iter, &data, &data_size);
+    if (result && data_size == sizeof(gfx::NativeWindow)) {
+      memcpy(r, data, sizeof(gfx::NativeWindow));
+    } else {
+      result = false;
+      NOTREACHED();
+    }
+    return result;
+#endif
+  }
+  static void Log(const param_type& p, std::string* l) {
+    l->append("<gfx::NativeWindow>");
+  }
+};
+
 }  // namespace IPC
 
 #endif  // CONTENT_COMMON_COMMON_PARAM_TRAITS_H_