Implement the host side of the PPB_PDF proxy.

chrome/renderer/pepper/chrome_renderer_pepper_host_factory.cc

 // Copyright (c) 2012 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/renderer/pepper/chrome_renderer_pepper_host_factory.h"
 
 #include "base/logging.h"
 #include "chrome/renderer/pepper/pepper_extensions_common_host.h"
 #include "chrome/renderer/pepper/pepper_flash_font_file_host.h"
 #include "chrome/renderer/pepper/pepper_flash_fullscreen_host.h"
 #include "chrome/renderer/pepper/pepper_flash_menu_host.h"
 #include "chrome/renderer/pepper/pepper_flash_renderer_host.h"
+#include "chrome/renderer/pepper/pepper_pdf_host.h"
 #include "content/public/renderer/renderer_ppapi_host.h"
 #include "ppapi/host/ppapi_host.h"
 #include "ppapi/host/resource_host.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/proxy/ppapi_message_utils.h"
 #include "ppapi/shared_impl/ppapi_permissions.h"
 
 using ppapi::host::ResourceHost;
 
 namespace chrome {
@@ skipping 66 matching lines @@
         if (ppapi::UnpackMessage<PpapiHostMsg_FlashFontFile_Create>(
             message, &description, &charset)) {
           return scoped_ptr<ResourceHost>(new PepperFlashFontFileHost(
               host_, instance, params.pp_resource(), description, charset));
         }
         break;
       }
     }
   }
 
+  if (host_->GetPpapiHost()->permissions().HasPermission(
+      ppapi::PERMISSION_PRIVATE)) {
+    switch (message.type()) {
+      case PpapiHostMsg_PDF_Create::ID: {
+        return scoped_ptr<ResourceHost>(new PepperPDFHost(
+            host_, instance, params.pp_resource()));
+      }
+    }
+  }
+
   return scoped_ptr<ResourceHost>();
 }
 
 }  // namespace chrome