ResourceScheduler get visual signal from RenderViewHostImpl

content/browser/loader/resource_scheduler_unittest.cc

 // Copyright (c) 2012 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 "content/browser/loader/resource_scheduler.h"
 
 #include "base/memory/scoped_vector.h"
 #include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/timer/mock_timer.h"
 #include "base/timer/timer.h"
 #include "content/browser/browser_thread_impl.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
 #include "content/browser/loader/resource_message_filter.h"
 #include "content/browser/loader/resource_request_info_impl.h"
 #include "content/common/resource_messages.h"
 #include "content/public/browser/resource_context.h"
 #include "content/public/browser/resource_controller.h"
 #include "content/public/browser/resource_throttle.h"
 #include "content/public/common/process_type.h"
 #include "content/public/common/resource_type.h"
+#include "content/public/test/mock_render_process_host.h"
+#include "content/public/test/test_browser_context.h"
+#include "content/test/test_web_contents.h"
 #include "net/base/host_port_pair.h"
 #include "net/base/request_priority.h"
 #include "net/http/http_server_properties_impl.h"
 #include "net/url_request/url_request.h"
 #include "net/url_request/url_request_test_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "ui/events/latency_info.h"
 
 namespace content {
 
 namespace {
 
 class TestRequestFactory;
 
 const int kChildId = 30;
 const int kRouteId = 75;
 const int kChildId2 = 43;
@@ skipping 101 matching lines @@
       : next_request_id_(0),
         ui_thread_(BrowserThread::UI, &message_loop_),
         io_thread_(BrowserThread::IO, &message_loop_),
         mock_timer_(new base::MockTimer(true, true)) {
     scheduler_.set_timer_for_testing(scoped_ptr<base::Timer>(mock_timer_));
 
     // TODO(aiolos): Remove when throttling and coalescing have both landed.
     scheduler_.SetThrottleOptionsForTesting(true /* should_throttle */,
                                             false /* should_coalesce */);
 
-    scheduler_.OnClientCreated(kChildId, kRouteId);
-    scheduler_.OnVisibilityChanged(kChildId, kRouteId, true);
-    scheduler_.OnClientCreated(kBackgroundChildId, kBackgroundRouteId);
+    scheduler_.OnClientCreated(kChildId, kRouteId, true);
+    scheduler_.OnClientCreated(kBackgroundChildId, kBackgroundRouteId, false);
     context_.set_http_server_properties(http_server_properties_.GetWeakPtr());
   }
 
   virtual ~ResourceSchedulerTest() {
     scheduler_.OnClientDeleted(kChildId, kRouteId);
     scheduler_.OnClientDeleted(kBackgroundChildId, kBackgroundRouteId);
   }
 
   scoped_ptr<net::URLRequest> NewURLRequestWithChildAndRoute(
       const char* url,
@@ skipping 470 matching lines @@
   ChangeRequestPriority(low2_spdy.get(), net::LOWEST);
   scoped_ptr<TestRequest> low2(NewRequest("http://host/low", net::LOWEST));
   EXPECT_TRUE(low2->started());
 }
 
 TEST_F(ResourceSchedulerTest, ThrottledClientCreation) {
   // TODO(aiolos): remove when throttling and coalescing have both landed
   scheduler_.SetThrottleOptionsForTesting(true /* should_throttle */,
                                           false /* should_coalesce */);
   EXPECT_TRUE(scheduler_.should_throttle());
-  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2);
+  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2, false);
 
   EXPECT_EQ(ResourceScheduler::THROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId2,
                                                 kBackgroundRouteId2));
   scheduler_.OnClientDeleted(kBackgroundChildId2, kBackgroundRouteId2);
 }
 
 TEST_F(ResourceSchedulerTest, ActiveClientThrottleUpdateOnLoadingChange) {
   // TODO(aiolos): remove when throttling and coalescing have both landed
   scheduler_.SetThrottleOptionsForTesting(true /* should_throttle */,
@@ skipping 363 matching lines @@
   EXPECT_EQ(ResourceScheduler::UNTHROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId,
                                                 kBackgroundRouteId));
 }
 
 TEST_F(ResourceSchedulerTest,
        UnloadedClientVisibilityChangedCorrectlyUnthrottles) {
   // TODO(aiolos): remove when throttling and coalescing have both landed
   scheduler_.SetThrottleOptionsForTesting(true /* should_throttle */,
                                           false /* should_coalesce */);
-  scheduler_.OnClientCreated(kChildId2, kRouteId2);
-  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2);
+  scheduler_.OnClientCreated(kChildId2, kRouteId2, false);
+  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2, false);
   scheduler_.OnLoadingStateChanged(kChildId2, kRouteId2, true);
   scheduler_.OnLoadingStateChanged(
       kBackgroundChildId2, kBackgroundRouteId2, true);
 
   // 1 visible, 3 hidden
   EXPECT_FALSE(scheduler_.active_clients_loaded());
   EXPECT_EQ(ResourceScheduler::THROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId,
                                                 kBackgroundRouteId));
   EXPECT_EQ(ResourceScheduler::THROTTLED,
@@ skipping 34 matching lines @@
 
   scheduler_.OnClientDeleted(kChildId2, kRouteId2);
   scheduler_.OnClientDeleted(kBackgroundChildId2, kBackgroundRouteId2);
 }
 
 TEST_F(ResourceSchedulerTest,
        UnloadedClientAudibilityChangedCorrectlyUnthrottles) {
   // TODO(aiolos): remove when throttling and coalescing have both landed
   scheduler_.SetThrottleOptionsForTesting(true /* should_throttle */,
                                           false /* should_coalesce */);
-  scheduler_.OnClientCreated(kChildId2, kRouteId2);
-  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2);
+  scheduler_.OnClientCreated(kChildId2, kRouteId2, false);
+  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2, false);
   scheduler_.OnLoadingStateChanged(
       kBackgroundChildId2, kBackgroundRouteId2, true);
   scheduler_.OnVisibilityChanged(kChildId, kRouteId, false);
   scheduler_.OnAudibilityChanged(kChildId, kRouteId, true);
 
   // 1 audible, 3 hidden
   EXPECT_FALSE(scheduler_.active_clients_loaded());
   EXPECT_EQ(ResourceScheduler::THROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId,
                                                 kBackgroundRouteId));
@@ skipping 35 matching lines @@
 
   scheduler_.OnClientDeleted(kChildId2, kRouteId2);
   scheduler_.OnClientDeleted(kBackgroundChildId2, kBackgroundRouteId2);
 }
 
 TEST_F(ResourceSchedulerTest,
        LoadedClientVisibilityChangedCorrectlyUnthrottles) {
   // TODO(aiolos): remove when throttling and coalescing have both landed
   scheduler_.SetThrottleOptionsForTesting(true /* should_throttle */,
                                           false /* should_coalesce */);
-  scheduler_.OnClientCreated(kChildId2, kRouteId2);
-  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2);
+  scheduler_.OnClientCreated(kChildId2, kRouteId2, false);
+  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2, false);
   scheduler_.OnLoadingStateChanged(kChildId2, kRouteId2, true);
   scheduler_.OnLoadingStateChanged(
       kBackgroundChildId2, kBackgroundRouteId2, true);
   // 1 visible, 3 hidden
   EXPECT_FALSE(scheduler_.active_clients_loaded());
   EXPECT_EQ(ResourceScheduler::THROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId,
                                                 kBackgroundRouteId));
   EXPECT_EQ(ResourceScheduler::THROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId2,
@@ skipping 33 matching lines @@
 
   scheduler_.OnClientDeleted(kChildId2, kRouteId2);
   scheduler_.OnClientDeleted(kBackgroundChildId2, kBackgroundRouteId2);
 }
 
 TEST_F(ResourceSchedulerTest,
        LoadedClientAudibilityChangedCorrectlyUnthrottles) {
   // TODO(aiolos): remove when throttling and coalescing have both landed
   scheduler_.SetThrottleOptionsForTesting(true /* should_throttle */,
                                           false /* should_coalesce */);
-  scheduler_.OnClientCreated(kChildId2, kRouteId2);
-  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2);
+  scheduler_.OnClientCreated(kChildId2, kRouteId2, false);
+  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2, false);
   scheduler_.OnLoadingStateChanged(kChildId2, kRouteId2, true);
   scheduler_.OnLoadingStateChanged(
       kBackgroundChildId2, kBackgroundRouteId2, true);
   scheduler_.OnVisibilityChanged(kChildId, kRouteId, false);
   scheduler_.OnAudibilityChanged(kChildId, kRouteId, true);
   // 1 audible, 3 hidden
   EXPECT_FALSE(scheduler_.active_clients_loaded());
   EXPECT_EQ(ResourceScheduler::THROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId,
                                                 kBackgroundRouteId));
@@ skipping 34 matching lines @@
             scheduler_.GetClientStateForTesting(kChildId, kRouteId));
 
   scheduler_.OnClientDeleted(kChildId2, kRouteId2);
   scheduler_.OnClientDeleted(kBackgroundChildId2, kBackgroundRouteId2);
 }
 
 TEST_F(ResourceSchedulerTest, UnloadedClientBecomesHiddenCorrectlyUnthrottles) {
   // TODO(aiolos): remove when throttling and coalescing have both landed
   scheduler_.SetThrottleOptionsForTesting(true /* should_throttle */,
                                           false /* should_coalesce */);
-  scheduler_.OnClientCreated(kChildId2, kRouteId2);
-  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2);
+  scheduler_.OnClientCreated(kChildId2, kRouteId2, true);
+  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2, false);
   scheduler_.OnLoadingStateChanged(
       kBackgroundChildId2, kBackgroundRouteId2, true);
 
   // 2 visible, 2 hidden
-  scheduler_.OnVisibilityChanged(kChildId2, kRouteId2, true);
   EXPECT_FALSE(scheduler_.active_clients_loaded());
   EXPECT_EQ(ResourceScheduler::THROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId,
                                                 kBackgroundRouteId));
   EXPECT_EQ(ResourceScheduler::THROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId2,
                                                 kBackgroundRouteId2));
   EXPECT_EQ(ResourceScheduler::ACTIVE_AND_LOADING,
             scheduler_.GetClientStateForTesting(kChildId2, kRouteId2));
   EXPECT_EQ(ResourceScheduler::ACTIVE_AND_LOADING,
@@ skipping 42 matching lines @@
             scheduler_.GetClientStateForTesting(kChildId, kRouteId));
 
   scheduler_.OnClientDeleted(kChildId2, kRouteId2);
   scheduler_.OnClientDeleted(kBackgroundChildId2, kBackgroundRouteId2);
 }
 
 TEST_F(ResourceSchedulerTest, UnloadedClientBecomesSilentCorrectlyUnthrottles) {
   // TODO(aiolos): remove when throttling and coalescing have both landed
   scheduler_.SetThrottleOptionsForTesting(true /* should_throttle */,
                                           false /* should_coalesce */);
-  scheduler_.OnClientCreated(kChildId2, kRouteId2);
-  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2);
+  scheduler_.OnClientCreated(kChildId2, kRouteId2, false);
+  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2, false);
   scheduler_.OnLoadingStateChanged(
       kBackgroundChildId2, kBackgroundRouteId2, true);
   scheduler_.OnAudibilityChanged(kChildId, kRouteId, true);
   scheduler_.OnVisibilityChanged(kChildId, kRouteId, false);
   scheduler_.OnAudibilityChanged(kChildId2, kRouteId2, true);
   // 2 audible, 2 hidden
   EXPECT_FALSE(scheduler_.active_clients_loaded());
   EXPECT_EQ(ResourceScheduler::THROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId,
                                                 kBackgroundRouteId));
@@ skipping 48 matching lines @@
             scheduler_.GetClientStateForTesting(kChildId, kRouteId));
 
   scheduler_.OnClientDeleted(kChildId2, kRouteId2);
   scheduler_.OnClientDeleted(kBackgroundChildId2, kBackgroundRouteId2);
 }
 
 TEST_F(ResourceSchedulerTest, LoadedClientBecomesHiddenCorrectlyThrottles) {
   // TODO(aiolos): remove when throttling and coalescing have both landed
   scheduler_.SetThrottleOptionsForTesting(true /* should_throttle */,
                                           false /* should_coalesce */);
-  scheduler_.OnClientCreated(kChildId2, kRouteId2);
-  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2);
+  scheduler_.OnClientCreated(kChildId2, kRouteId2, true);
+  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2, false);
   scheduler_.OnLoadingStateChanged(
       kBackgroundChildId2, kBackgroundRouteId2, true);
   scheduler_.OnLoadingStateChanged(kChildId2, kRouteId2, true);
-  scheduler_.OnVisibilityChanged(kChildId2, kRouteId2, true);
   // 2 visible, 2 hidden
   EXPECT_FALSE(scheduler_.active_clients_loaded());
   EXPECT_EQ(ResourceScheduler::THROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId,
                                                 kBackgroundRouteId));
   EXPECT_EQ(ResourceScheduler::THROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId2,
                                                 kBackgroundRouteId2));
   EXPECT_EQ(ResourceScheduler::UNTHROTTLED,
             scheduler_.GetClientStateForTesting(kChildId2, kRouteId2));
@@ skipping 43 matching lines @@
             scheduler_.GetClientStateForTesting(kChildId, kRouteId));
 
   scheduler_.OnClientDeleted(kChildId2, kRouteId2);
   scheduler_.OnClientDeleted(kBackgroundChildId2, kBackgroundRouteId2);
 }
 
 TEST_F(ResourceSchedulerTest, LoadedClientBecomesSilentCorrectlyThrottles) {
   // TODO(aiolos): remove when throttling and coalescing have both landed
   scheduler_.SetThrottleOptionsForTesting(true /* should_throttle */,
                                           false /* should_coalesce */);
-  scheduler_.OnClientCreated(kChildId2, kRouteId2);
-  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2);
+  scheduler_.OnClientCreated(kChildId2, kRouteId2, false);
+  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2, false);
   scheduler_.OnLoadingStateChanged(
       kBackgroundChildId2, kBackgroundRouteId2, true);
   scheduler_.OnLoadingStateChanged(kChildId2, kRouteId2, true);
   scheduler_.OnVisibilityChanged(kChildId, kRouteId, false);
   scheduler_.OnAudibilityChanged(kChildId, kRouteId, true);
   scheduler_.OnAudibilityChanged(kChildId2, kRouteId2, true);
   // 2 audible, 2 hidden
   EXPECT_FALSE(scheduler_.active_clients_loaded());
   EXPECT_EQ(ResourceScheduler::THROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId,
@@ skipping 49 matching lines @@
             scheduler_.GetClientStateForTesting(kChildId, kRouteId));
 
   scheduler_.OnClientDeleted(kChildId2, kRouteId2);
   scheduler_.OnClientDeleted(kBackgroundChildId2, kBackgroundRouteId2);
 }
 
 TEST_F(ResourceSchedulerTest, HiddenLoadedChangesCorrectlyStayThrottled) {
   // TODO(aiolos): remove when throttling and coalescing have both landed
   scheduler_.SetThrottleOptionsForTesting(true /* should_throttle */,
                                           false /* should_coalesce */);
-  scheduler_.OnClientCreated(kChildId2, kRouteId2);
-  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2);
+  scheduler_.OnClientCreated(kChildId2, kRouteId2, true);
+  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2, false);
 
   // 1 visible and 2 hidden loading, 1 visible loaded
-  scheduler_.OnVisibilityChanged(kChildId2, kRouteId2, true);
   scheduler_.OnLoadingStateChanged(kChildId, kRouteId, true);
   EXPECT_FALSE(scheduler_.active_clients_loaded());
   EXPECT_EQ(ResourceScheduler::THROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId,
                                                 kBackgroundRouteId));
   EXPECT_EQ(ResourceScheduler::THROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId2,
                                                 kBackgroundRouteId2));
   EXPECT_EQ(ResourceScheduler::ACTIVE_AND_LOADING,
             scheduler_.GetClientStateForTesting(kChildId2, kRouteId2));
@@ skipping 46 matching lines @@
             scheduler_.GetClientStateForTesting(kChildId, kRouteId));
 
   scheduler_.OnClientDeleted(kChildId2, kRouteId2);
   scheduler_.OnClientDeleted(kBackgroundChildId2, kBackgroundRouteId2);
 }
 
 TEST_F(ResourceSchedulerTest, PartialVisibleClientLoadedDoesNotUnthrottle) {
   // TODO(aiolos): remove when throttling and coalescing have both landed
   scheduler_.SetThrottleOptionsForTesting(true /* should_throttle */,
                                           false /* should_coalesce */);
-  scheduler_.OnClientCreated(kChildId2, kRouteId2);
-  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2);
-  scheduler_.OnVisibilityChanged(kChildId2, kRouteId2, true);
+  scheduler_.OnClientCreated(kChildId2, kRouteId2, true);
+  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2, false);
 
   // 2 visible loading, 1 hidden loading, 1 hidden loaded
   scheduler_.OnLoadingStateChanged(
       kBackgroundChildId2, kBackgroundRouteId2, true);
   EXPECT_FALSE(scheduler_.active_clients_loaded());
   EXPECT_EQ(ResourceScheduler::THROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId,
                                                 kBackgroundRouteId));
   EXPECT_EQ(ResourceScheduler::THROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId2,
@@ skipping 32 matching lines @@
             scheduler_.GetClientStateForTesting(kChildId, kRouteId));
 
   scheduler_.OnClientDeleted(kChildId2, kRouteId2);
   scheduler_.OnClientDeleted(kBackgroundChildId2, kBackgroundRouteId2);
 }
 
 TEST_F(ResourceSchedulerTest, FullVisibleLoadedCorrectlyUnthrottle) {
   // TODO(aiolos): remove when throttling and coalescing have both landed
   scheduler_.SetThrottleOptionsForTesting(true /* should_throttle */,
                                           false /* should_coalesce */);
-  scheduler_.OnClientCreated(kChildId2, kRouteId2);
-  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2);
-  scheduler_.OnVisibilityChanged(kChildId2, kRouteId2, true);
+  scheduler_.OnClientCreated(kChildId2, kRouteId2, true);
+  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2, false);
 
   // 1 visible and 1 hidden loaded, 1 visible and 1 hidden loading
   scheduler_.OnLoadingStateChanged(
       kBackgroundChildId2, kBackgroundRouteId2, true);
   scheduler_.OnLoadingStateChanged(kChildId2, kRouteId2, true);
   EXPECT_FALSE(scheduler_.active_clients_loaded());
   EXPECT_EQ(ResourceScheduler::THROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId,
                                                 kBackgroundRouteId));
   EXPECT_EQ(ResourceScheduler::THROTTLED,
@@ skipping 44 matching lines @@
 
   scheduler_.OnClientDeleted(kChildId2, kRouteId2);
   scheduler_.OnClientDeleted(kBackgroundChildId2, kBackgroundRouteId2);
 }
 
 TEST_F(ResourceSchedulerTest,
        ActiveAndLoadingClientDeletedCorrectlyUnthrottle) {
   // TODO(aiolos): remove when throttling and coalescing have both landed
   scheduler_.SetThrottleOptionsForTesting(true /* should_throttle */,
                                           false /* should_coalesce */);
-  scheduler_.OnClientCreated(kChildId2, kRouteId2);
-  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2);
-  scheduler_.OnVisibilityChanged(kChildId2, kRouteId2, true);
+  scheduler_.OnClientCreated(kChildId2, kRouteId2, true);
+  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2, false);
 
   // 1 visible and 1 hidden loaded, 1 visible and 1 hidden loading
   scheduler_.OnLoadingStateChanged(
       kBackgroundChildId2, kBackgroundRouteId2, true);
   scheduler_.OnLoadingStateChanged(kChildId, kRouteId, true);
   EXPECT_FALSE(scheduler_.active_clients_loaded());
   EXPECT_EQ(ResourceScheduler::THROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId,
                                                 kBackgroundRouteId));
   EXPECT_EQ(ResourceScheduler::THROTTLED,
@@ skipping 115 matching lines @@
   scheduler_.OnAudibilityChanged(kBackgroundChildId, kBackgroundRouteId, true);
   EXPECT_EQ(ResourceScheduler::UNTHROTTLED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId,
                                                 kBackgroundRouteId));
   EXPECT_FALSE(mock_timer_->IsRunning());
 }
 
 TEST_F(ResourceSchedulerTest, LastCoalescedClientDeletionStopsTimer) {
   scheduler_.SetThrottleOptionsForTesting(true /* should_throttle */,
                                           true /* should_coalesce */);
-  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2);
+  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2, false);
   EXPECT_FALSE(mock_timer_->IsRunning());
   scheduler_.OnLoadingStateChanged(kChildId, kRouteId, true);
   EXPECT_FALSE(mock_timer_->IsRunning());
   scheduler_.OnLoadingStateChanged(
       kBackgroundChildId, kBackgroundRouteId, true);
   EXPECT_EQ(ResourceScheduler::COALESCED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId,
                                                 kBackgroundRouteId));
   scheduler_.OnLoadingStateChanged(
       kBackgroundChildId2, kBackgroundRouteId2, true);
   EXPECT_EQ(ResourceScheduler::COALESCED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId2,
                                                 kBackgroundRouteId2));
   EXPECT_TRUE(mock_timer_->IsRunning());
 
   scheduler_.OnClientDeleted(kBackgroundChildId, kBackgroundRouteId);
   EXPECT_TRUE(mock_timer_->IsRunning());
 
   scheduler_.OnClientDeleted(kBackgroundChildId2, kBackgroundRouteId2);
   EXPECT_FALSE(mock_timer_->IsRunning());
 
   // To avoid errors on test tear down.
-  scheduler_.OnClientCreated(kBackgroundChildId, kBackgroundRouteId);
+  scheduler_.OnClientCreated(kBackgroundChildId, kBackgroundRouteId, false);
 }
 
 TEST_F(ResourceSchedulerTest, LastCoalescedClientStartsLoadingStopsTimer) {
   scheduler_.SetThrottleOptionsForTesting(true /* should_throttle */,
                                           true /* should_coalesce */);
-  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2);
+  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2, false);
   EXPECT_FALSE(mock_timer_->IsRunning());
   scheduler_.OnLoadingStateChanged(kChildId, kRouteId, true);
   EXPECT_FALSE(mock_timer_->IsRunning());
   scheduler_.OnLoadingStateChanged(
       kBackgroundChildId, kBackgroundRouteId, true);
   EXPECT_EQ(ResourceScheduler::COALESCED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId,
                                                 kBackgroundRouteId));
   scheduler_.OnLoadingStateChanged(
       kBackgroundChildId2, kBackgroundRouteId2, true);
@@ skipping 10 matching lines @@
       kBackgroundChildId2, kBackgroundRouteId2, false);
   EXPECT_FALSE(mock_timer_->IsRunning());
 
   // This is needed to avoid errors on test tear down.
   scheduler_.OnClientDeleted(kBackgroundChildId2, kBackgroundRouteId2);
 }
 
 TEST_F(ResourceSchedulerTest, LastCoalescedClientBecomesVisibleStopsTimer) {
   scheduler_.SetThrottleOptionsForTesting(true /* should_throttle */,
                                           true /* should_coalesce */);
-  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2);
+  scheduler_.OnClientCreated(kBackgroundChildId2, kBackgroundRouteId2, false);
   EXPECT_FALSE(mock_timer_->IsRunning());
   scheduler_.OnLoadingStateChanged(kChildId, kRouteId, true);
   EXPECT_FALSE(mock_timer_->IsRunning());
   scheduler_.OnLoadingStateChanged(
       kBackgroundChildId, kBackgroundRouteId, true);
   EXPECT_EQ(ResourceScheduler::COALESCED,
             scheduler_.GetClientStateForTesting(kBackgroundChildId,
                                                 kBackgroundRouteId));
   scheduler_.OnLoadingStateChanged(
       kBackgroundChildId2, kBackgroundRouteId2, true);
@@ skipping 160 matching lines @@
   EXPECT_FALSE(high2->started());
   EXPECT_FALSE(low->started());
 
   FireCoalescingTimer();
 
   EXPECT_TRUE(high->started());
   EXPECT_TRUE(high2->started());
   EXPECT_TRUE(low->started());
 }
 
+TEST_F(ResourceSchedulerTest, GetVisualSignalFromRenderViewHost) {
+  scoped_ptr<MockRenderProcessHostFactory> render_process_host_factory;
+  scoped_ptr<TestBrowserContext> browser_context;
+  scoped_ptr<TestWebContents> web_contents_1;
+  scoped_ptr<TestWebContents> web_contents_2;
+
+  render_process_host_factory.reset(new MockRenderProcessHostFactory());
+  browser_context.reset(new TestBrowserContext());
+  scoped_refptr<SiteInstance> site_instance_1 =
+      SiteInstance::Create(browser_context.get());
+  scoped_refptr<SiteInstance> site_instance_2 =
+      SiteInstance::Create(browser_context.get());
+  SiteInstanceImpl::set_render_process_host_factory(
+          render_process_host_factory.get());
+
+  web_contents_1.reset(
+      TestWebContents::Create(browser_context.get(), site_instance_1.get()));
+  web_contents_2.reset(
+      TestWebContents::Create(browser_context.get(), site_instance_2.get()));
+  base::RunLoop().RunUntilIdle();
+
+  RenderViewHostImpl* rvh1 = web_contents_1->GetRenderViewHost();
+  RenderViewHostImpl* rvh2 = web_contents_2->GetRenderViewHost();
+  ResourceScheduler* scheduler = ResourceDispatcherHostImpl::Get()->scheduler();
+
+  // Check initial visibility is set correctly.
+  EXPECT_EQ(scheduler->IsClientVisibleForTesting(rvh1->GetProcess()->GetID(),
+                                                 rvh1->GetRoutingID()),
+            !rvh1->is_hidden());
+  EXPECT_EQ(scheduler->IsClientVisibleForTesting(rvh2->GetProcess()->GetID(),
+                                                 rvh1->GetRoutingID()),
+            !rvh2->is_hidden());
+
+  // 1 visible, 1 hidden
+  rvh1->WasShown(ui::LatencyInfo());
+  rvh2->WasHidden();
+  base::RunLoop().RunUntilIdle();
+
+  EXPECT_TRUE(scheduler->IsClientVisibleForTesting(rvh1->GetProcess()->GetID(),
+                                                   rvh1->GetRoutingID()));
+  EXPECT_FALSE(scheduler->IsClientVisibleForTesting(rvh2->GetProcess()->GetID(),
+                                                    rvh2->GetRoutingID()));
+
+  // Flip the visibility and check again.
+  rvh1->WasHidden();
+  rvh2->WasShown(ui::LatencyInfo());
+  base::RunLoop().RunUntilIdle();
+
+  EXPECT_FALSE(scheduler->IsClientVisibleForTesting(rvh1->GetProcess()->GetID(),
+                                                    rvh1->GetRoutingID()));
+  EXPECT_TRUE(scheduler->IsClientVisibleForTesting(rvh2->GetProcess()->GetID(),
+                                                   rvh2->GetRoutingID()));
+  // Clean up.
+  web_contents_1.reset();
+  web_contents_2.reset();
+  base::RunLoop().RunUntilIdle();
+
+  browser_context.reset();
+  render_process_host_factory.reset();
+}
+
 }  // unnamed namespace
 
 }  // namespace content