Remove all uses of the global Dispatcher Get function.

ppapi/proxy/ppb_buffer_proxy.cc

Index: ppapi/proxy/ppb_buffer_proxy.cc
===================================================================
--- ppapi/proxy/ppb_buffer_proxy.cc	(revision 74021)
+++ ppapi/proxy/ppb_buffer_proxy.cc	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -109,7 +109,7 @@
     object->Unmap();
 }
 
-const PPB_Buffer_Dev ppb_buffer = {
+const PPB_Buffer_Dev buffer_interface = {
   &Create,
   &IsBuffer,
   &Describe,
@@ -117,6 +117,11 @@
   &Unmap,
 };
 
+InterfaceProxy* CreateBufferProxy(Dispatcher* dispatcher,
+                                  const void* target_interface) {
+  return new PPB_Buffer_Proxy(dispatcher, target_interface);
+}
+
 }  // namespace
 
 PPB_Buffer_Proxy::PPB_Buffer_Proxy(Dispatcher* dispatcher,
@@ -127,14 +132,18 @@
 PPB_Buffer_Proxy::~PPB_Buffer_Proxy() {
 }
 
-const void* PPB_Buffer_Proxy::GetSourceInterface() const {
-  return &ppb_buffer;
+// static
+const InterfaceProxy::Info* PPB_Buffer_Proxy::GetInfo() {
+  static const Info info = {
+    &buffer_interface,
+    PPB_BUFFER_DEV_INTERFACE,
+    INTERFACE_ID_PPB_BUFFER,
+    false,
+    &CreateBufferProxy,
+  };
+  return &info;
 }
 
-InterfaceID PPB_Buffer_Proxy::GetInterfaceId() const {
-  return INTERFACE_ID_PPB_BUFFER;
-}
-
 bool PPB_Buffer_Proxy::OnMessageReceived(const IPC::Message& msg) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(PPB_Buffer_Proxy, msg)