Revert of Combine PDF plugin into the Chromium binary.

chrome/browser/resources/pdf/pdf_extension_test.cc

 // Copyright 2014 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 "base/base_paths.h"
 #include "base/files/file_util.h"
 #include "base/path_service.h"
 #include "chrome/browser/extensions/component_loader.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_service.h"
@@ skipping 23 matching lines @@
     ASSERT_TRUE(embedded_test_server()->InitializeAndWaitUntilReady());
   }
 
 
   virtual void TearDownOnMainThread() override {
     ASSERT_TRUE(embedded_test_server()->ShutdownAndWaitUntilComplete());
     ExtensionApiTest::TearDownOnMainThread();
   }
 
   void RunTestsInFile(std::string filename, std::string pdf_filename) {
+    base::FilePath pdf_path;
+    ASSERT_TRUE(PathService::Get(chrome::FILE_PDF_PLUGIN, &pdf_path));
+    ASSERT_TRUE(
+        content::PluginService::GetInstance()->GetRegisteredPpapiPluginInfo(
+            pdf_path));
     ExtensionService* service = extensions::ExtensionSystem::Get(
         profile())->extension_service();
     service->component_loader()->Add(IDR_PDF_MANIFEST,
         base::FilePath(FILE_PATH_LITERAL("pdf")));
     const extensions::Extension* extension =
         extensions::ExtensionRegistry::Get(profile())
             ->enabled_extensions()
             .GetByID("mhjfbmdgcfjbbpaeojofohoefgiehjai");
     ASSERT_TRUE(extension);
     ASSERT_TRUE(MimeTypesHandler::GetHandler(
@@ skipping 46 matching lines @@
   RunTestsInFile("bookmarks_test.js", "test-bookmarks.pdf");
 }
 
 IN_PROC_BROWSER_TEST_F(PDFExtensionTest, Navigator) {
   RunTestsInFile("navigator_test.js", "test.pdf");
 }
 
 IN_PROC_BROWSER_TEST_F(PDFExtensionTest, ParamsParser) {
   RunTestsInFile("params_parser_test.js", "test.pdf");
 }