Remove the old task manager view

chrome/browser/prerender/prerender_browsertest.cc

Index: chrome/browser/prerender/prerender_browsertest.cc
diff --git a/chrome/browser/prerender/prerender_browsertest.cc b/chrome/browser/prerender/prerender_browsertest.cc
index 630f23916789f0a45ff437659a82c3cb15db3ad9..e2cfe01c2e0b175483c10a1bf247f310e25b9021 100644
--- a/chrome/browser/prerender/prerender_browsertest.cc
+++ b/chrome/browser/prerender/prerender_browsertest.cc
@@ -53,8 +53,6 @@
 #include "chrome/browser/safe_browsing/safe_browsing_service.h"
 #include "chrome/browser/task_management/providers/web_contents/web_contents_tags_manager.h"
 #include "chrome/browser/task_management/task_management_browsertest_util.h"
-#include "chrome/browser/task_manager/task_manager.h"
-#include "chrome/browser/task_manager/task_manager_browsertest_util.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_commands.h"
 #include "chrome/browser/ui/browser_finder.h"
@@ -121,6 +119,11 @@
 #include "ui/base/l10n/l10n_util.h"
 #include "url/gurl.h"
 
+#if defined(OS_MACOSX)
+#include "chrome/browser/task_manager/task_manager.h"
+#include "chrome/browser/task_manager/task_manager_browsertest_util.h"
+#endif  // defined(OS_MACOSX)
+
 using chrome_browser_net::NetworkPredictionOptions;
 using content::BrowserThread;
 using content::DevToolsAgentHost;
@@ -137,7 +140,10 @@ using net::NetworkChangeNotifier;
 using safe_browsing::LocalSafeBrowsingDatabaseManager;
 using safe_browsing::SafeBrowsingService;
 using safe_browsing::SBThreatType;
+
+#if defined(OS_MACOSX)
 using task_manager::browsertest_util::WaitForTaskManagerRows;
+#endif  // defined(OS_MACOSX)
 
 // Prerender tests work as follows:
 //
@@ -1360,9 +1366,11 @@ class PrerenderBrowserTest : virtual public InProcessBrowserTest {
     check_load_events_ = false;
   }
 
+#if defined(OS_MACOSX)
   TaskManagerModel* GetModel() const {
     return TaskManager::GetInstance()->model();
   }
+#endif  // defined(OS_MACOSX)
 
   PrerenderManager* GetPrerenderManager() const {
     PrerenderManager* prerender_manager =
@@ -2474,11 +2482,9 @@ IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, PrerenderAbortPendingOnCancel) {
   EXPECT_TRUE(IsEmptyPrerenderLinkManager());
 }
 
+// Old task manager browser tests should only run on Mac.
+#if defined(OS_MACOSX)
 IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, OpenTaskManagerBeforePrerender) {
-  // This test is for the old implementation of the task manager. We must
-  // explicitly disable the new one.
-  task_manager::browsertest_util::EnableOldTaskManager();
-
   const base::string16 any_prerender = MatchTaskManagerPrerender("*");
   const base::string16 any_tab = MatchTaskManagerTab("*");
   const base::string16 original = MatchTaskManagerTab("Preloader");
@@ -2514,10 +2520,6 @@ IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, OpenTaskManagerBeforePrerender) {
 }
 
 IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, OpenTaskManagerAfterPrerender) {
-  // This test is for the old implementation of the task manager. We must
-  // explicitly disable the new one.
-  task_manager::browsertest_util::EnableOldTaskManager();
-
   const base::string16 any_prerender = MatchTaskManagerPrerender("*");
   const base::string16 any_tab = MatchTaskManagerTab("*");
   const base::string16 original = MatchTaskManagerTab("Preloader");
@@ -2552,10 +2554,6 @@ IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, OpenTaskManagerAfterPrerender) {
 }
 
 IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, OpenTaskManagerAfterSwapIn) {
-  // This test is for the old implementation of the task manager. We must
-  // explicitly disable the new one.
-  task_manager::browsertest_util::EnableOldTaskManager();
-
   const base::string16 any_prerender = MatchTaskManagerPrerender("*");
   const base::string16 any_tab = MatchTaskManagerTab("*");
   const base::string16 final = MatchTaskManagerTab("Prerender Page");
@@ -2574,6 +2572,7 @@ IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, OpenTaskManagerAfterSwapIn) {
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows(1, any_tab));
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows(0, any_prerender));
 }
+#endif  // defined(OS_MACOSX)
 
 // Checks that audio loads are deferred on prerendering.
 IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, PrerenderHTML5Audio) {