PPAPI: Make V8VarConverter longer-lived

content/renderer/pepper/v8_var_converter.cc

 // Copyright (c) 2013 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 "content/renderer/pepper/v8_var_converter.h"
 
 #include <map>
 #include <stack>
 #include <string>
 
@@ skipping 267 matching lines @@
   }
   return true;
 }
 
 bool CanHaveChildren(PP_Var var) {
   return var.type == PP_VARTYPE_ARRAY || var.type == PP_VARTYPE_DICTIONARY;
 }
 
 }  // namespace
 
-V8VarConverter::V8VarConverter(PP_Instance instance)
-    : instance_(instance),
-      object_vars_allowed_(kDisallowObjectVars),
-      message_loop_proxy_(base::MessageLoopProxy::current()) {
-  resource_converter_.reset(new ResourceConverterImpl(
-      instance, RendererPpapiHost::GetForPPInstance(instance)));
-}
-
 V8VarConverter::V8VarConverter(PP_Instance instance,
                                AllowObjectVars object_vars_allowed)
     : instance_(instance),
-      object_vars_allowed_(object_vars_allowed),
-      message_loop_proxy_(base::MessageLoopProxy::current()) {
-  resource_converter_.reset(new ResourceConverterImpl(
-      instance, RendererPpapiHost::GetForPPInstance(instance)));
+      object_vars_allowed_(object_vars_allowed) {
+  resource_converter_.reset(new ResourceConverterImpl(instance));
 }
 
 V8VarConverter::V8VarConverter(PP_Instance instance,
                                scoped_ptr<ResourceConverter> resource_converter)
     : instance_(instance),
       object_vars_allowed_(kDisallowObjectVars),
-      message_loop_proxy_(base::MessageLoopProxy::current()),
       resource_converter_(resource_converter.release()) {}
 
 V8VarConverter::~V8VarConverter() {}
 
 // To/FromV8Value use a stack-based DFS search to traverse V8/Var graph. Each
 // iteration, the top node on the stack examined. If the node has not been
 // visited yet (i.e. sentinel == false) then it is added to the list of parents
 // which contains all of the nodes on the path from the start node to the
 // current node. Each of the current nodes children are examined. If they appear
 // in the list of parents it means we have a cycle and we return NULL.
@@ skipping 291 matching lines @@
             std::string(*name_utf8, name_utf8.length()), child_var);
         DCHECK(success);
       }
     }
   }
   *result_var = root;
   return true;
 }
 
 }  // namespace content