Use internal pdf plugin with --internal-pdf

chrome/common/chrome_paths.cc

 // Copyright (c) 2006-2010 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/common/chrome_paths.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/path_service.h"
@@ skipping 203 matching lines @@
 #endif
       }
       break;
     case chrome::FILE_FLASH_PLUGIN:
       if (!GetInternalPluginsDirectory(&cur))
         return false;
       cur = cur.Append(kInternalFlashPluginFileName);
       if (!file_util::PathExists(cur))
         return false;
       break;
+    case chrome::FILE_PDF_PLUGIN:
+      if (!PathService::Get(base::DIR_MODULE, &cur))
+        return false;
+#if defined(OS_WIN)
+      cur = cur.Append(FILE_PATH_LITERAL("pdf.dll"));
+      if (!file_util::PathExists(cur))
+        return false;
+#else
+      // TODO: port
+      return false;
+#endif
+      break;
 #if defined(OS_CHROMEOS)
     case chrome::FILE_CHROMEOS_API:
       if (!PathService::Get(base::DIR_MODULE, &cur))
         return false;
       cur = cur.Append(FILE_PATH_LITERAL("chromeos"));
       cur = cur.Append(FILE_PATH_LITERAL("libcros.so"));
       break;
 #endif
     // The following are only valid in the development environment, and
     // will fail if executed from an installed executable (because the
@@ skipping 28 matching lines @@
   return true;
 }
 
 // This cannot be done as a static initializer sadly since Visual Studio will
 // eliminate this object file if there is no direct entry point into it.
 void RegisterPathProvider() {
   PathService::RegisterProvider(PathProvider, PATH_START, PATH_END);
 }
 
 }  // namespace chrome