Get full WebPluginInfo for the PDF plug-in before enabling it for print preview.

chrome/browser/ui/webui/print_preview/print_preview_ui_unittest.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 <vector>
 
 #include "base/memory/ref_counted_memory.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/printing/print_preview_tab_controller.h"
 #include "chrome/browser/printing/print_view_manager.h"
 #include "chrome/browser/ui/browser_commands.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/constrained_window_tab_helper.h"
 #include "chrome/browser/ui/tab_contents/tab_contents.h"
 #include "chrome/browser/ui/webui/print_preview/print_preview_ui.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/browser_with_test_window_test.h"
+#include "content/public/browser/plugin_service.h"
 #include "content/public/browser/site_instance.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/test/web_contents_tester.h"
 #include "printing/print_job_constants.h"
+#include "webkit/plugins/npapi/mock_plugin_list.h"
 
 using content::WebContents;
 using content::WebContentsTester;
 
 namespace {
 
 base::RefCountedBytes* CreateTestData() {
   const unsigned char blob1[] =
       "12346102356120394751634516591348710478123649165419234519234512349134";
   std::vector<unsigned char> preview_data(blob1, blob1 + sizeof(blob1));
@@ skipping 10 matching lines @@
 
 class PrintPreviewUIUnitTest : public BrowserWithTestWindowTest {
  public:
   PrintPreviewUIUnitTest() {}
   virtual ~PrintPreviewUIUnitTest() {}
 
  protected:
   virtual void SetUp() OVERRIDE {
     BrowserWithTestWindowTest::SetUp();
 
+    // The PluginService will be destroyed at the end of the test (due to the
+    // ShadowingAtExitManager in our base class).
+    content::PluginService::GetInstance()->SetPluginListForTesting(
+        &plugin_list_);
+
     profile()->GetPrefs()->SetBoolean(prefs::kPrintPreviewDisabled, false);
 
     chrome::NewTab(browser());
   }
+
+ private:
+  webkit::npapi::MockPluginList plugin_list_;
 };
 
 // Create/Get a preview tab for initiator tab.
 TEST_F(PrintPreviewUIUnitTest, PrintPreviewData) {
   TabContents* initiator_tab = chrome::GetActiveTabContents(browser());
   ASSERT_TRUE(initiator_tab);
   EXPECT_EQ(0U, GetConstrainedWindowCount(initiator_tab));
 
   printing::PrintPreviewTabController* controller =
       printing::PrintPreviewTabController::GetInstance();
@@ skipping 194 matching lines @@
   PrintPreviewUI* preview_ui = static_cast<PrintPreviewUI*>(
       preview_tab->web_contents()->GetWebUI()->GetController());
   ASSERT_TRUE(preview_ui != NULL);
 
   preview_ui->OnPrintPreviewTabClosed();
 
   EXPECT_EQ(2, browser()->tab_count());
   EXPECT_EQ(0U, GetConstrainedWindowCount(initiator_tab));
   EXPECT_EQ(1, initiator_tester->GetNumberOfFocusCalls());
 }