Make a separate histogram for MatchComplete Final Status'es and

chrome/browser/prerender/prerender_manager_unittest.cc

Index: chrome/browser/prerender/prerender_manager_unittest.cc
===================================================================
--- chrome/browser/prerender/prerender_manager_unittest.cc	(revision 118385)
+++ chrome/browser/prerender/prerender_manager_unittest.cc	(working copy)
@@ -446,7 +446,7 @@
 }
 
 // Tests that a PrerenderManager created for a browser session in the control
-// group will not be able to override FINAL_STATUS_CONTROL_GROUP.
+// group works as expected.
 TEST_F(PrerenderManagerTest, ControlGroup) {
   RestorePrerenderMode restore_prerender_mode;
   PrerenderManager::SetMode(
@@ -455,11 +455,27 @@
   DummyPrerenderContents* prerender_contents =
       prerender_manager()->CreateNextPrerenderContents(
           url,
-          FINAL_STATUS_CONTROL_GROUP);
+          FINAL_STATUS_MANAGER_SHUTDOWN);
   EXPECT_TRUE(prerender_manager()->AddSimplePrerender(url));
   EXPECT_FALSE(prerender_contents->has_started());
 }
 
+// Tests that a PrerenderManager created for a browser session in the control
+// group works as expected if the site gets visited.
+TEST_F(PrerenderManagerTest, ControlGroupVisited) {
+  RestorePrerenderMode restore_prerender_mode;
+  PrerenderManager::SetMode(
+      PrerenderManager::PRERENDER_MODE_EXPERIMENT_CONTROL_GROUP);
+  GURL url("http://www.google.com/");
+  DummyPrerenderContents* prerender_contents =
+      prerender_manager()->CreateNextPrerenderContents(
+          url,
+          FINAL_STATUS_USED);
+  EXPECT_TRUE(prerender_manager()->AddSimplePrerender(url));
+  EXPECT_FALSE(prerender_contents->has_started());
+  ASSERT_EQ(prerender_contents, prerender_manager()->GetEntry(url));
+}
+
 // Tests that prerendering is cancelled when the source render view does not
 // exist.  On failure, the DCHECK in CreatePrerenderContents() above should be
 // triggered.