Generate param traits even when shared by mutliple message files.

content/public/common/common_param_traits.h

Index: content/public/common/common_param_traits.h
===================================================================
--- content/public/common/common_param_traits.h	(revision 143430)
+++ content/public/common/common_param_traits.h	(working copy)
@@ -17,7 +17,7 @@
 
 #include "base/memory/ref_counted.h"
 #include "content/common/content_export.h"
-#include "content/public/common/console_message_level.h"
+#include "content/public/common/common_param_traits_macros.h"
 #include "content/public/common/page_transition_types.h"
 #include "content/public/common/security_style.h"
 #include "googleurl/src/gurl.h"
@@ -27,7 +27,6 @@
 #include "third_party/WebKit/Source/Platform/chromium/public/WebReferrerPolicy.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/surface/transport_dib.h"
-#include "webkit/glue/resource_type.h"
 
 class SkBitmap;
 
@@ -62,14 +61,6 @@
 };
 
 template <>
-struct ParamTraits<ResourceType::Type> {
-  typedef ResourceType::Type param_type;
-  static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* p);
-  static void Log(const param_type& p, std::string* l);
-};
-
-template <>
 struct CONTENT_EXPORT ParamTraits<net::URLRequestStatus> {
   typedef net::URLRequestStatus param_type;
   static void Write(Message* m, const param_type& p);
@@ -248,14 +239,6 @@
   typedef int Type;
 };
 
-template<>
-struct CONTENT_EXPORT ParamTraits<content::ConsoleMessageLevel> {
-  typedef content::ConsoleMessageLevel param_type;
-  static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
-  static void Log(const param_type& p, std::string* l);
-};
-
 }  // namespace IPC
 
 #endif  // CONTENT_PUBLIC_COMMON_COMMON_PARAM_TRAITS_H_