Add support for external out-of-process PPAPI plugins in the browser.

content/public/browser/content_browser_client.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 "content/public/browser/content_browser_client.h"
 
 #include "base/file_path.h"
 #include "googleurl/src/gurl.h"
 #include "ui/gfx/image/image_skia.h"
 
@@ skipping 214 matching lines @@
 }
 
 FilePath ContentBrowserClient::GetDefaultDownloadDirectory() {
   return FilePath();
 }
 
 std::string ContentBrowserClient::GetDefaultDownloadName() {
   return std::string();
 }
 
+BrowserPpapiHost*
+    ContentBrowserClient::GetExternalBrowserPpapiHost(int plugin_process_id) {
+  return NULL;
+}
+
 bool ContentBrowserClient::AllowPepperSocketAPI(
     BrowserContext* browser_context,
     const GURL& url,
     const SocketPermissionRequest& params) {
   return false;
 }
 
 bool ContentBrowserClient::AllowPepperPrivateFileAPI() {
   return false;
 }
 
 FilePath ContentBrowserClient::GetHyphenDictionaryDirectory() {
   return FilePath();
 }
 
 #if defined(OS_WIN)
 const wchar_t* ContentBrowserClient::GetResourceDllName() {
   return NULL;
 }
 #endif
 
 #if defined(USE_NSS)
 crypto::CryptoModuleBlockingPasswordDelegate*
     ContentBrowserClient::GetCryptoPasswordDelegate(const GURL& url) {
   return NULL;
 }
 #endif
 
 }  // namespace content