Move Pickle to base namespace.

extensions/common/permissions/manifest_permission.h

Index: extensions/common/permissions/manifest_permission.h
diff --git a/extensions/common/permissions/manifest_permission.h b/extensions/common/permissions/manifest_permission.h
index a94513442ba1c228c81535e27e696d8e2b2f1dd5..fded281e0444d6d8b77eacba8d8231d69726be58 100644
--- a/extensions/common/permissions/manifest_permission.h
+++ b/extensions/common/permissions/manifest_permission.h
@@ -13,11 +13,10 @@
 #include "extensions/common/permissions/coalesced_permission_message.h"
 #include "extensions/common/permissions/permission_message.h"
 
-class PickleIterator;
-
 namespace base {
-class Value;
+class PickleIterator;
 class ListValue;
+class Value;
 }
 
 namespace IPC {
@@ -85,7 +84,7 @@ class ManifestPermission {
   void Write(IPC::Message* m) const;
 
   // Reads from the given IPC message |m|.
-  bool Read(const IPC::Message* m, PickleIterator* iter);
+  bool Read(const IPC::Message* m, base::PickleIterator* iter);
 
   // Logs this permission.
   void Log(std::string* log) const;