Change most uses of Pickle to base::Pickle

content/common/page_state_serialization.cc

Index: content/common/page_state_serialization.cc
diff --git a/content/common/page_state_serialization.cc b/content/common/page_state_serialization.cc
index 77e2abf039387e15caaa1c9a7809e289d3dab615..b40b457f23cd963feb7114306fa1f8705b31d8d5 100644
--- a/content/common/page_state_serialization.cc
+++ b/content/common/page_state_serialization.cc
@@ -167,15 +167,15 @@ struct SerializeObject {
       : pickle(data, len),
         version(0),
         parse_error(false) {
-    iter = PickleIterator(pickle);
+    iter = base::PickleIterator(pickle);
   }
 
   std::string GetAsString() {
     return std::string(static_cast<const char*>(pickle.data()), pickle.size());
   }
 
-  Pickle pickle;
-  PickleIterator iter;
+  base::Pickle pickle;
+  base::PickleIterator iter;
   int version;
   bool parse_error;
 };