Move more code from headers to implementation.

ppapi/proxy/plugin_var_tracker.h

 // Copyright (c) 2010 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.
 
 #ifndef PPAPI_PROXY_PLUGIN_VAR_TRACKER_H_
 #define PPAPI_PROXY_PLUGIN_VAR_TRACKER_H_
 
 #include <map>
 #include <string>
 
@@ skipping 12 matching lines @@
 // a single ref in the renderer process whenever we have a nonzero refcount
 // in the plugin process. This allows AddRef and Release to not initiate too
 // much IPC chat.
 class PluginVarTracker {
  public:
   // You must call Init() after creation to set up the correct interfaces. We
   // do this to avoid having to depend on the dispatcher in the constructor,
   // which is probably just being created from our constructor.
   PluginVarTracker(PluginDispatcher* dispatcher);
 
+  ~PluginVarTracker();
+
   // Must be called after construction.
   void Init();
 
   // Allocates a string and returns the ID of it. The refcount will be 1.
   int64_t MakeString(const std::string& str);
 
   // Returns the string associated with the given string var. The var must be
   // of type string and must be valid or this function will crash.
   std::string GetString(const PP_Var& var) const;
 
@@ skipping 19 matching lines @@
   // Tracks object references to the reference count of that object on the
   // plugin side.
   typedef std::map<int64_t, int> ObjectRefCount;
   ObjectRefCount object_ref_count_;
 };
 
 }  // namespace proxy
 }  // namespace pp
 
 #endif  // PPAPI_PROXY_PLUGIN_VAR_TRACKER_H_