Changes to not use the prerendered contents when window.opener needs to be set.

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 004b6277fbe3ebe938ac3cb86333e4d2d2ac2ef4..41aa1a5978fb740ab2dbe3e4a08eb15230f39f50 100644
--- a/chrome/browser/prerender/prerender_browsertest.cc
+++ b/chrome/browser/prerender/prerender_browsertest.cc
@@ -53,6 +53,18 @@ std::string CreateServerRedirect(const std::string& dest_url) {
   return kServerRedirectBase + dest_url;
 }
 
+// Returns true iff the final status is one in which the prerendered
+// page should prerender correctly. The page still may not be used.
+bool ShouldRenderPrerenderedPageCorrectly(FinalStatus status) {
+  switch (status) {
+    case FINAL_STATUS_USED:
+    case FINAL_STATUS_WINDOW_OPENER:
+      return true;
+    default:
+      return false;
+  }
+}
+
 // PrerenderContents that stops the UI message loop on DidStopLoading().
 class TestPrerenderContents : public PrerenderContents {
  public:
@@ -96,6 +108,7 @@ class TestPrerenderContents : public PrerenderContents {
     // When the PrerenderContents is destroyed, quit the UI message loop.
     // This happens on navigation to used prerendered pages, and soon
     // after cancellation of unused prerendered pages.
+    MessageLoopForUI::current()->RunAllPending();
     MessageLoopForUI::current()->Quit();
   }
 
@@ -113,7 +126,7 @@ class TestPrerenderContents : public PrerenderContents {
   virtual void DidStopLoading() OVERRIDE {
     PrerenderContents::DidStopLoading();
     ++number_of_loads_;
-    if (expected_final_status_ == FINAL_STATUS_USED &&
+    if (ShouldRenderPrerenderedPageCorrectly(expected_final_status_) &&
         number_of_loads_ >= expected_number_of_loads_) {
       MessageLoopForUI::current()->Quit();
     } else if (expected_final_status_ == FINAL_STATUS_RENDERER_CRASHED) {
@@ -284,6 +297,30 @@ class PrerenderBrowserTest : public InProcessBrowserTest {
     NavigateToURLImpl(dest_url_);
   }
 
+  void OpenDestUrlInNewWindowViaJs() const {
+    // Make sure in navigating we have a URL to use in the PrerenderManager.
+    EXPECT_TRUE(prerender_manager()->FindEntry(dest_url_) != NULL);
+
+    bool open_window_result = false;
+    ASSERT_TRUE(ui_test_utils::ExecuteJavaScriptAndExtractBool(
+        browser()->GetSelectedTabContents()->render_view_host(), L"",
+        L"window.domAutomationController.send(JsOpenLinkInNewWindow())",
+        &open_window_result));
+    EXPECT_TRUE(open_window_result);
+  }
+
+  void OpenDestUrlInNewWindowViaClick() const {
+    // Make sure in navigating we have a URL to use in the PrerenderManager.
+    EXPECT_TRUE(prerender_manager()->FindEntry(dest_url_) != NULL);
+
+    bool click_prerendered_link_result = false;
+    ASSERT_TRUE(ui_test_utils::ExecuteJavaScriptAndExtractBool(
+        browser()->GetSelectedTabContents()->render_view_host(), L"",
+        L"window.domAutomationController.send(ClickOpenLinkInNewWindow())",
+        &click_prerendered_link_result));
+    EXPECT_TRUE(click_prerendered_link_result);
+  }
+
   // Should be const but test_server()->GetURL(...) is not const.
   void NavigateToURL(const std::string& dest_html_file) {
     GURL dest_url = test_server()->GetURL(dest_html_file);
@@ -374,26 +411,23 @@ class PrerenderBrowserTest : public InProcessBrowserTest {
         static_cast<TestPrerenderContents*>(
             prerender_manager()->FindEntry(dest_url_));
 
-    switch (expected_final_status) {
-      case FINAL_STATUS_USED: {
-        ASSERT_TRUE(prerender_contents != NULL);
-
-        if (call_javascript_) {
-          // Check if page behaves as expected while in prerendered state.
-          bool prerender_test_result = false;
-          ASSERT_TRUE(ui_test_utils::ExecuteJavaScriptAndExtractBool(
-              prerender_contents->render_view_host_mutable(), L"",
-              L"window.domAutomationController.send(DidPrerenderPass())",
-              &prerender_test_result));
-          EXPECT_TRUE(prerender_test_result);
-        }
-        break;
+    if (ShouldRenderPrerenderedPageCorrectly(expected_final_status)) {
+      ASSERT_TRUE(prerender_contents != NULL);
+      EXPECT_EQ(FINAL_STATUS_MAX, prerender_contents->final_status());
+
+      if (call_javascript_) {
+        // Check if page behaves as expected while in prerendered state.
+        bool prerender_test_result = false;
+        ASSERT_TRUE(ui_test_utils::ExecuteJavaScriptAndExtractBool(
+            prerender_contents->render_view_host_mutable(), L"",
+            L"window.domAutomationController.send(DidPrerenderPass())",
+            &prerender_test_result));
+        EXPECT_TRUE(prerender_test_result);
       }
-      default:
-        // In the failure case, we should have removed dest_url_ from the
-        // prerender_manager.
-        EXPECT_TRUE(prerender_contents == NULL);
-        break;
+    } else {
+      // In the failure case, we should have removed dest_url_ from the
+      // prerender_manager.
+      EXPECT_TRUE(prerender_contents == NULL);
     }
   }
 
@@ -1081,4 +1115,27 @@ IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, PrerenderPrint) {
                    1);
 }
 
+// Checks that if a page is opened in a new window by javascript the
+// prerendered page is not used.
+IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest,
+                       PrerenderWindowOpenerJsOpenInNewPageTest) {
+  PrerenderTestURL("files/prerender/prerender_page.html",
+                   FINAL_STATUS_WINDOW_OPENER,
+                   1);
+  OpenDestUrlInNewWindowViaJs();
+}
+
+// Checks that if a page is opened due to click on a href with target="_blank"
+// the prerendered page is not used.
+IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest,
+                       PrerenderWindowOpenerClickOpenInNewPageTest) {
+  PrerenderTestURL("files/prerender/prerender_page.html",
+                   FINAL_STATUS_WINDOW_OPENER,
+                   1);
+  OpenDestUrlInNewWindowViaClick();
+}
+
+// TODO(shishir): Add a test for the case when the page having the
+// prerendering link already has an opener set.
+
 }  // namespace prerender