Refactor the PlatformContext layer to have only one class.

chrome/plugin/webplugin_delegate_stub.cc

 // Copyright (c) 2006-2008 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 "chrome/plugin/webplugin_delegate_stub.h"
 
 #include "build/build_config.h"
 
 #include "base/command_line.h"
 #include "chrome/common/chrome_switches.h"
@@ skipping 218 matching lines @@
 
 void WebPluginDelegateStub::OnPrint(base::SharedMemoryHandle* shared_memory,
                                     size_t* size) {
 #if defined(OS_WIN)
   gfx::Emf emf;
   if (!emf.CreateDc(NULL, NULL)) {
     NOTREACHED();
     return;
   }
   HDC hdc = emf.hdc();
-  skia::PlatformDeviceWin::InitializeDC(hdc);
+  skia::PlatformDevice::InitializeDC(hdc);
   delegate_->Print(hdc);
   if (!emf.CloseDc()) {
     NOTREACHED();
     return;
   }
 
   *size = emf.GetDataSize();
   DCHECK(*size);
   base::SharedMemory shared_buf;
   CreateSharedBuffer(*size, &shared_buf, shared_memory);
@@ skipping 110 matching lines @@
                                       params.notify_data,
                                       params.stream);
   webplugin_->OnResourceCreated(params.resource_id, resource_client);
 }
 
 void WebPluginDelegateStub::OnURLRequestRouted(const std::string& url,
                                                bool notify_needed,
                                                intptr_t notify_data) {
   delegate_->URLRequestRouted(url, notify_needed, notify_data);
 }