Revert "DNS Prefetch fix: renderer shouldn't send long hostnames to browser."

chrome/browser/net/predictor_browsertest.cc

Index: chrome/browser/net/predictor_browsertest.cc
diff --git a/chrome/browser/net/predictor_browsertest.cc b/chrome/browser/net/predictor_browsertest.cc
index c6762b8d816477a42682f6655740952ea68f8d77..307c61c25604fb0f7ceb9c9982de881fc264bf9c 100644
--- a/chrome/browser/net/predictor_browsertest.cc
+++ b/chrome/browser/net/predictor_browsertest.cc
@@ -22,11 +22,6 @@ using testing::HasSubstr;
 namespace {
 
 const char kChromiumHostname[] = "chromium.org";
-const char kInvalidLongHostname[] = "illegally-long-hostname-over-255-"
-    "characters-should-not-send-an-ipc-message-to-the-browser-"
-    "0000000000000000000000000000000000000000000000000000000000000000000000000"
-    "0000000000000000000000000000000000000000000000000000000000000000000000000"
-    "000000000000000000000000000000000000000000000000000000.org";
 
 // Records a history of all hostnames for which resolving has been requested,
 // and immediately fails the resolution requests themselves.
@@ -51,11 +46,7 @@ class HostResolutionRequestRecorder : public net::HostResolverProc {
     return net::ERR_NAME_NOT_RESOLVED;
   }
 
-  int RequestedHostnameCount() const {
-    return requested_hostnames_.size();
-  }
-
-  bool HasHostBeenRequested(const std::string& hostname) const {
+  bool HasHostBeenRequested(const std::string& hostname) {
     DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
     return std::find(requested_hostnames_.begin(),
                      requested_hostnames_.end(),
@@ -159,18 +150,10 @@ class PredictorBrowserTest : public InProcessBrowserTest {
     serializer.Serialize(*list_value);
   }
 
-  bool HasHostBeenRequested(const std::string& hostname) const {
-    return host_resolution_request_recorder_->HasHostBeenRequested(hostname);
-  }
-
   void WaitUntilHostHasBeenRequested(const std::string& hostname) {
     host_resolution_request_recorder_->WaitUntilHostHasBeenRequested(hostname);
   }
 
-  int RequestedHostnameCount() const {
-    return host_resolution_request_recorder_->RequestedHostnameCount();
-  }
-
   const GURL startup_url_;
   const GURL referring_url_;
   const GURL target_url_;
@@ -211,13 +194,10 @@ IN_PROC_BROWSER_TEST_F(PredictorBrowserTest, ShutdownStartupCycle) {
 
 IN_PROC_BROWSER_TEST_F(PredictorBrowserTest, DnsPrefetch) {
   ASSERT_TRUE(test_server()->Start());
-  int hostnames_requested_before_load = RequestedHostnameCount();
   ui_test_utils::NavigateToURL(
       browser(),
       GURL(test_server()->GetURL("files/predictor/dns_prefetch.html")));
   WaitUntilHostHasBeenRequested(kChromiumHostname);
-  ASSERT_FALSE(HasHostBeenRequested(kInvalidLongHostname));
-  ASSERT_EQ(hostnames_requested_before_load + 1, RequestedHostnameCount());
 }
 
 }  // namespace chrome_browser_net