Make the Pepper proxy support in-process font rendering.

ppapi/proxy/dispatcher.h

 // 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.
 
 #ifndef PPAPI_PROXY_DISPATCHER_H_
 #define PPAPI_PROXY_DISPATCHER_H_
 
 #include <set>
 #include <string>
 #include <vector>
 
+#include "base/callback.h"
+#include "base/tracked_objects.h"
 #include "ipc/ipc_channel_proxy.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_module.h"
 #include "ppapi/proxy/callback_tracker.h"
 #include "ppapi/proxy/proxy_channel.h"
 #include "ppapi/proxy/interface_id.h"
 #include "ppapi/proxy/interface_proxy.h"
 #include "ppapi/proxy/plugin_var_tracker.h"
 
 namespace pp {
+
+namespace shared_impl {
+class WebKitForwarding;
+}
+
 namespace proxy {
 
 class VarSerializationRules;
 
 // An interface proxy can represent either end of a cross-process interface
 // call. The "source" side is where the call is invoked, and the "target" side
 // is where the call ends up being executed.
 //
 // Plugin side                          | Browser side
 // -------------------------------------|--------------------------------------
@@ skipping 11 matching lines @@
   typedef int32_t (*InitModuleFunc)(PP_Module, GetInterfaceFunc);
 
   class Delegate : public ProxyChannel::Delegate {
    public:
     // Returns the set used for globally uniquifying PP_Instances. This same
     // set must be returned for all channels. This is required only for the
     // plugin side, for the host side, the return value may be NULL.
     //
     // DEREFERENCE ONLY ON THE I/O THREAD.
     virtual std::set<PP_Instance>* GetGloballySeenInstanceIDSet() = 0;
+
+    // Returns the WebKit forwarding object used to make calls into WebKit.
+    // Necessary only on the plugin side. The host side can return NULL.
+    virtual pp::shared_impl::WebKitForwarding* GetWebKitForwarding() = 0;
+
+    // Posts the given task to the WebKit thread associated with this plugin
+    // process. For host processes, this will not be called and can do
+    // nothing. The WebKit thread should be lazily created if it does not
+    // exist yet.
+    virtual void PostToWebKitThread(const tracked_objects::Location& from_here,
+                                    const base::Closure& task) = 0;
   };
 
   virtual ~Dispatcher();
 
   // Returns true if the dispatcher is on the plugin side, or false if it's the
   // browser side.
   virtual bool IsPlugin() const = 0;
 
   VarSerializationRules* serialization_rules() const {
     return serialization_rules_.get();
@@ skipping 34 matching lines @@
       InterfaceID id);
   static const InterfaceProxy::Info* GetPPPInterfaceInfo(
       const std::string& name);
   static const InterfaceProxy::Info* GetPPPInterfaceInfo(
       InterfaceID id);
 
  protected:
   Dispatcher(base::ProcessHandle remote_process_handle,
              GetInterfaceFunc local_get_interface);
 
+  void SetDelegate(Delegate* delegate);
+
   // Setter for the derived classes to set the appropriate var serialization.
   // Takes ownership of the given pointer, which must be on the heap.
   void SetSerializationRules(VarSerializationRules* var_serialization_rules);
 
   bool disallow_trusted_interfaces() const {
     return disallow_trusted_interfaces_;
   }
 
+  Delegate* dispatcher_delegate_;
+
  private:
   bool disallow_trusted_interfaces_;
 
   GetInterfaceFunc local_get_interface_;
 
   CallbackTracker callback_tracker_;
 
   scoped_ptr<VarSerializationRules> serialization_rules_;
 
   DISALLOW_COPY_AND_ASSIGN(Dispatcher);
 };
 
 }  // namespace proxy
 }  // namespace pp
 
 #endif  // PPAPI_PROXY_DISPATCHER_H_