Add PrerenderStatusEvent on Prerenders

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 67ddad431ecdb07c0c1222e2fef52cde1b6ad25b..cfce72848bf5c86c72c05103aefab3fb7d7dd87c 100644
--- a/chrome/browser/prerender/prerender_browsertest.cc
+++ b/chrome/browser/prerender/prerender_browsertest.cc
@@ -2285,12 +2285,44 @@ IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, PrerenderCancelAll) {
                    1);
   // Post a task to cancel all the prerenders.
   MessageLoop::current()->PostTask(
-      FROM_HERE,
-      base::Bind(&CancelAllPrerenders, GetPrerenderManager()));
+      FROM_HERE, base::Bind(&CancelAllPrerenders, GetPrerenderManager()));
   content::RunMessageLoop();
   EXPECT_TRUE(GetPrerenderContents() == NULL);
 }
 
+IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, PrerenderEvents) {
+  PrerenderTestURL("files/prerender/prerender_page.html",
+                   FINAL_STATUS_CANCELLED, 1);
+  WebContents* web_contents = chrome::GetActiveWebContents(browser());
+  bool received_prerender_started = false;
+  bool received_prerender_stopped = false;
+  ASSERT_TRUE(content::ExecuteJavaScriptAndExtractBool(
+      web_contents->GetRenderViewHost(), L"",
+      L"window.domAutomationController.send(receivedPrerenderStartEvent)",
+      &received_prerender_started));
+  ASSERT_TRUE(content::ExecuteJavaScriptAndExtractBool(
+      web_contents->GetRenderViewHost(), L"",
+      L"window.domAutomationController.send(receivedPrerenderStopEvent)",
+      &received_prerender_stopped));
+  ASSERT_TRUE(received_prerender_started);
+  ASSERT_FALSE(received_prerender_stopped);
+
+  MessageLoop::current()->PostTask(
+      FROM_HERE, base::Bind(&CancelAllPrerenders, GetPrerenderManager()));
+  content::RunMessageLoop();
+
+  ASSERT_TRUE(content::ExecuteJavaScriptAndExtractBool(
+      web_contents->GetRenderViewHost(), L"",
+      L"window.domAutomationController.send(receivedPrerenderStartEvent)",
+      &received_prerender_started));
+  ASSERT_TRUE(content::ExecuteJavaScriptAndExtractBool(
+      web_contents->GetRenderViewHost(), L"",
+      L"window.domAutomationController.send(receivedPrerenderStopEvent)",
+      &received_prerender_stopped));
+  ASSERT_TRUE(received_prerender_started);
+  ASSERT_TRUE(received_prerender_stopped);
+}
+
 // Prerendering and history tests.
 // The prerendered page is navigated to in several ways [navigate via
 // omnibox, click on link, key-modified click to open in background tab, etc],