Add an opt-out header for HTTP throttling. Never throttle for localhost.

chrome/common/net/url_fetcher_unittest.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/message_loop_proxy.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
 #include "build/build_config.h"
 #include "chrome/common/net/url_fetcher.h"
 #include "chrome/common/net/url_request_context_getter.h"
@@ skipping 558 matching lines @@
 }
 
 TEST_F(URLFetcherProtectTest, Overload) {
   net::TestServer test_server(net::TestServer::TYPE_HTTP, FilePath(kDocRoot));
   ASSERT_TRUE(test_server.Start());
 
   GURL url(test_server.GetURL("defaultresponse"));
 
   // Registers an entry for test url. It only allows 3 requests to be sent
   // in 200 milliseconds.
+  net::URLRequestThrottlerManager* manager =
+      net::URLRequestThrottlerManager::GetInstance();
   scoped_refptr<net::URLRequestThrottlerEntry> entry(
-      new net::URLRequestThrottlerEntry(200, 3, 1, 2.0, 0.0, 256));
-  net::URLRequestThrottlerManager::GetInstance()->OverrideEntryForTests(
-      url, entry);
+      new net::URLRequestThrottlerEntry(manager, 200, 3, 1, 2.0, 0.0, 256));
+  manager->OverrideEntryForTests(url, entry);
 
   CreateFetcher(url);
 
   MessageLoop::current()->Run();
 
   net::URLRequestThrottlerManager::GetInstance()->EraseEntryForTests(url);
 }
 
 TEST_F(URLFetcherProtectTest, ServerUnavailable) {
   net::TestServer test_server(net::TestServer::TYPE_HTTP, FilePath(kDocRoot));
   ASSERT_TRUE(test_server.Start());
 
   GURL url(test_server.GetURL("files/server-unavailable.html"));
 
   // Registers an entry for test url. The backoff time is calculated by:
   //     new_backoff = 2.0 * old_backoff + 0
   // and maximum backoff time is 256 milliseconds.
   // Maximum retries allowed is set to 11.
+  net::URLRequestThrottlerManager* manager =
+      net::URLRequestThrottlerManager::GetInstance();
   scoped_refptr<net::URLRequestThrottlerEntry> entry(
-      new net::URLRequestThrottlerEntry(200, 3, 1, 2.0, 0.0, 256));
-  net::URLRequestThrottlerManager::GetInstance()->OverrideEntryForTests(
-      url, entry);
+      new net::URLRequestThrottlerEntry(manager, 200, 3, 1, 2.0, 0.0, 256));
+  manager->OverrideEntryForTests(url, entry);
 
   CreateFetcher(url);
 
   MessageLoop::current()->Run();
 
   net::URLRequestThrottlerManager::GetInstance()->EraseEntryForTests(url);
 }
 
 TEST_F(URLFetcherProtectTestPassedThrough, ServerUnavailablePropagateResponse) {
   net::TestServer test_server(net::TestServer::TYPE_HTTP, FilePath(kDocRoot));
   ASSERT_TRUE(test_server.Start());
 
   GURL url(test_server.GetURL("files/server-unavailable.html"));
 
   // Registers an entry for test url. The backoff time is calculated by:
   //     new_backoff = 2.0 * old_backoff + 0
   // and maximum backoff time is 150000 milliseconds.
   // Maximum retries allowed is set to 11.
+  net::URLRequestThrottlerManager* manager =
+      net::URLRequestThrottlerManager::GetInstance();
   scoped_refptr<net::URLRequestThrottlerEntry> entry(
-      new net::URLRequestThrottlerEntry(200, 3, 100, 2.0, 0.0, 150000));
+      new net::URLRequestThrottlerEntry(
+          manager, 200, 3, 100, 2.0, 0.0, 150000));
   // Total time if *not* for not doing automatic backoff would be 150s.
   // In reality it should be "as soon as server responds".
-  net::URLRequestThrottlerManager::GetInstance()->OverrideEntryForTests(
-      url, entry);
+  manager->OverrideEntryForTests(url, entry);
 
   CreateFetcher(url);
 
   MessageLoop::current()->Run();
 
   net::URLRequestThrottlerManager::GetInstance()->EraseEntryForTests(url);
 }
 
 #if defined(OS_MACOSX)
 // SIGSEGV on Mac: http://crbug.com/60426
@@ skipping 18 matching lines @@
 #endif
   net::TestServer test_server(net::TestServer::TYPE_HTTP, FilePath(kDocRoot));
   ASSERT_TRUE(test_server.Start());
 
   GURL url(test_server.GetURL("files/server-unavailable.html"));
 
   // Registers an entry for test url. The backoff time is calculated by:
   //     new_backoff = 2.0 * old_backoff + 0
   // The initial backoff is 2 seconds and maximum backoff is 4 seconds.
   // Maximum retries allowed is set to 2.
+  net::URLRequestThrottlerManager* manager =
+      net::URLRequestThrottlerManager::GetInstance();
   scoped_refptr<net::URLRequestThrottlerEntry> entry(
-      new net::URLRequestThrottlerEntry(200, 3, 2000, 2.0, 0.0, 4000));
-  net::URLRequestThrottlerManager::GetInstance()->OverrideEntryForTests(
-      url, entry);
+      new net::URLRequestThrottlerEntry(
+          manager, 200, 3, 2000, 2.0, 0.0, 4000));
+  manager->OverrideEntryForTests(url, entry);
 
   // Create a separate thread that will create the URLFetcher.  The current
   // (main) thread will do the IO, and when the fetch is complete it will
   // terminate the main thread's message loop; then the other thread's
   // message loop will be shut down automatically as the thread goes out of
   // scope.
   base::Thread t("URLFetcher test thread");
   ASSERT_TRUE(t.Start());
   t.message_loop()->PostTask(FROM_HERE, new FetcherWrapperTask(this, url));
 
   MessageLoop::current()->Run();
 
   net::URLRequestThrottlerManager::GetInstance()->EraseEntryForTests(url);
 }
 
 TEST_F(URLFetcherCancelTest, CancelWhileDelayedStartTaskPending) {
   net::TestServer test_server(net::TestServer::TYPE_HTTP, FilePath(kDocRoot));
   ASSERT_TRUE(test_server.Start());
 
   GURL url(test_server.GetURL("files/server-unavailable.html"));
 
   // Register an entry for test url.
   // Using a sliding window of 4 seconds, and max of 1 request, under a fast
   // run we expect to have a 4 second delay when posting the Start task.
+  net::URLRequestThrottlerManager* manager =
+      net::URLRequestThrottlerManager::GetInstance();
   scoped_refptr<net::URLRequestThrottlerEntry> entry(
-      new net::URLRequestThrottlerEntry(4000, 1, 2000, 2.0, 0.0, 4000));
-  net::URLRequestThrottlerManager::GetInstance()->OverrideEntryForTests(
-      url, entry);
+      new net::URLRequestThrottlerEntry(
+          manager, 4000, 1, 2000, 2.0, 0.0, 4000));
+  manager->OverrideEntryForTests(url, entry);
   // Fake that a request has just started.
   entry->ReserveSendingTimeForNextRequest(base::TimeTicks());
 
   // The next request we try to send will be delayed by ~4 seconds.
   // The slower the test runs, the less the delay will be (since it takes the
   // time difference from now).
 
   base::Thread t("URLFetcher test thread");
   ASSERT_TRUE(t.Start());
   t.message_loop()->PostTask(FROM_HERE, new FetcherWrapperTask(this, url));
@@ skipping 26 matching lines @@
       FROM_HERE,
       new CurriedTask(new MessageLoop::QuitTask(), MessageLoop::current()));
   MessageLoop::current()->Run();
   EXPECT_EQ(1, GetNumFetcherCores());
   URLFetcher::CancelAll();
   EXPECT_EQ(0, GetNumFetcherCores());
   delete fetcher_;
 }
 
 }  // namespace.