Add GetLiveVars to PPB_Testing_Dev. Fix leaks it uncovered.

ppapi/proxy/serialized_var.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ppapi/proxy/serialized_var.h"
 
 #include "base/logging.h"
 #include "ipc/ipc_message_utils.h"
 #include "ppapi/proxy/dispatcher.h"
 #include "ppapi/proxy/interface_proxy.h"
@@ skipping 393 matching lines @@
   for (size_t i = 0; i < deserialized_.size(); i++) {
     serialized_[i].inner_->serialization_rules()->EndReceiveCallerOwned(
         deserialized_[i]);
   }
 }
 
 PP_Var* SerializedVarVectorReceiveInput::Get(Dispatcher* dispatcher,
                                              uint32_t* array_size) {
   deserialized_.resize(serialized_.size());
   for (size_t i = 0; i < serialized_.size(); i++) {
-    // The vector must be able to clean themselves up after this call is
+    // The vectors must be able to clean themselves up after this call is
     // torn down.
     serialized_[i].inner_->set_serialization_rules(
         dispatcher->serialization_rules());
 
     serialized_[i].inner_->SetVar(
         serialized_[i].inner_->serialization_rules()->BeginReceiveCallerOwned(
             serialized_[i].inner_->GetIncompleteVar(),
             serialized_[i].inner_->GetStringPtr(),
             dispatcher));
     deserialized_[i] = serialized_[i].inner_->GetVar();
@@ skipping 114 matching lines @@
   inner_->ForceSetStringValueForTest(str);
 }
 
 SerializedVarTestReader::SerializedVarTestReader(const SerializedVar& var)
     : SerializedVar(var) {
 }
 
 }  // namespace proxy
 }  // namespace ppapi