Move Pickle to base namespace.

gpu/ipc/gpu_command_buffer_traits.h

Index: gpu/ipc/gpu_command_buffer_traits.h
diff --git a/gpu/ipc/gpu_command_buffer_traits.h b/gpu/ipc/gpu_command_buffer_traits.h
index 1c7e02e76e532bca8f47ae85f78d719d8522a279..d99d4654bffa59170a8da29965c8db2a1055e92f 100644
--- a/gpu/ipc/gpu_command_buffer_traits.h
+++ b/gpu/ipc/gpu_command_buffer_traits.h
@@ -22,7 +22,7 @@ template <>
 struct GPU_EXPORT ParamTraits<gpu::CommandBuffer::State> {
   typedef gpu::CommandBuffer::State param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* p);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* p);
   static void Log(const param_type& p, std::string* l);
 };
 
@@ -30,7 +30,7 @@ template<>
 struct GPU_EXPORT ParamTraits<gpu::Mailbox> {
   typedef gpu::Mailbox param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* p);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* p);
   static void Log(const param_type& p, std::string* l);
 };
 
@@ -38,7 +38,7 @@ template <>
 struct GPU_EXPORT ParamTraits<gpu::MailboxHolder> {
   typedef gpu::MailboxHolder param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* p);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* p);
   static void Log(const param_type& p, std::string* l);
 };
 
@@ -46,7 +46,7 @@ template <>
 struct GPU_EXPORT ParamTraits<gpu::ValueState> {
   typedef gpu::ValueState param_type;
   static void Write(Message* m, const param_type& p);
-  static bool Read(const Message* m, PickleIterator* iter, param_type* p);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* p);
   static void Log(const param_type& p, std::string* l);
 };