[Cleanup] Factor out common code.

chrome/browser/memory/tab_manager_unittest.cc

Index: chrome/browser/memory/tab_manager_unittest.cc
diff --git a/chrome/browser/memory/tab_manager_unittest.cc b/chrome/browser/memory/tab_manager_unittest.cc
index 794f62bf083bf184e52337e4f6b23547475deea9..2f1f7dbfe2b0d35612559409a26b497b4baef33d 100644
--- a/chrome/browser/memory/tab_manager_unittest.cc
+++ b/chrome/browser/memory/tab_manager_unittest.cc
@@ -302,24 +302,6 @@ TEST_F(TabManagerTest, Comparator) {
   EXPECT_EQ(kInternalPage, test_list[index++].child_process_host_id);
 }
 
-TEST_F(TabManagerTest, IsInternalPage) {
-  EXPECT_TRUE(TabManager::IsInternalPage(GURL(chrome::kChromeUIDownloadsURL)));
-  EXPECT_TRUE(TabManager::IsInternalPage(GURL(chrome::kChromeUIHistoryURL)));
-  EXPECT_TRUE(TabManager::IsInternalPage(GURL(chrome::kChromeUINewTabURL)));
-  EXPECT_TRUE(TabManager::IsInternalPage(GURL(chrome::kChromeUISettingsURL)));
-
-// Debugging URLs are not included.
-#if defined(OS_CHROMEOS)
-  EXPECT_FALSE(TabManager::IsInternalPage(GURL(chrome::kChromeUIDiscardsURL)));
-#endif
-  EXPECT_FALSE(
-      TabManager::IsInternalPage(GURL(chrome::kChromeUINetInternalsURL)));
-
-  // Prefix matches are included.
-  EXPECT_TRUE(
-      TabManager::IsInternalPage(GURL("chrome://settings/fakeSetting")));
-}
-
 // Ensures discarding tabs leaves TabStripModel in a good state.
 TEST_F(TabManagerTest, DiscardWebContentsAt) {
   TabManager tab_manager;