[TooManyTabs] Add TabNavigationThrottle

chrome/browser/chrome_content_browser_client.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 "chrome/browser/chrome_content_browser_client.h"
 
 #include <map>
 #include <set>
 #include <utility>
 #include <vector>
@@ skipping 55 matching lines @@
 #include "chrome/browser/prerender/prerender_manager_factory.h"
 #include "chrome/browser/prerender/prerender_message_filter.h"
 #include "chrome/browser/printing/printing_message_filter.h"
 #include "chrome/browser/profiles/chrome_browser_main_extra_parts_profiles.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_io_data.h"
 #include "chrome/browser/profiling_host/profiling_process_host.h"
 #include "chrome/browser/renderer_host/chrome_navigation_ui_data.h"
 #include "chrome/browser/renderer_host/chrome_render_message_filter.h"
 #include "chrome/browser/renderer_host/pepper/chrome_browser_pepper_host_factory.h"
+#include "chrome/browser/resource_coordinator/background_tab_navigation_throttle.h"
 #include "chrome/browser/safe_browsing/browser_url_loader_throttle.h"
 #include "chrome/browser/safe_browsing/certificate_reporting_service.h"
 #include "chrome/browser/safe_browsing/certificate_reporting_service_factory.h"
 #include "chrome/browser/safe_browsing/mojo_safe_browsing_impl.h"
 #include "chrome/browser/safe_browsing/safe_browsing_service.h"
 #include "chrome/browser/search/instant_service.h"
 #include "chrome/browser/search/instant_service_factory.h"
 #include "chrome/browser/search/search.h"
 #include "chrome/browser/speech/chrome_speech_recognition_manager_delegate.h"
 #include "chrome/browser/speech/tts_controller.h"
@@ skipping 3150 matching lines @@
   if (delay_navigation_throttle)
     throttles.push_back(std::move(delay_navigation_throttle));
 
   content::WebContents* web_contents = handle->GetWebContents();
   if (auto* subresource_filter_client =
           ChromeSubresourceFilterClient::FromWebContents(web_contents)) {
     subresource_filter_client->MaybeAppendNavigationThrottles(handle,
                                                               &throttles);
   }
 
+#if !defined(OS_ANDROID)
+  // BackgroundTabNavigationThrottle is used by TabManager, which is only
+  // enabled on non-Android platforms.
+  std::unique_ptr<content::NavigationThrottle>
+      background_tab_navigation_throttle = resource_coordinator::
+          BackgroundTabNavigationThrottle::MaybeCreateThrottleFor(handle);
+  if (background_tab_navigation_throttle)
+    throttles.push_back(std::move(background_tab_navigation_throttle));
+#endif
+
   return throttles;
 }
 
 std::unique_ptr<content::NavigationUIData>
 ChromeContentBrowserClient::GetNavigationUIData(
     content::NavigationHandle* navigation_handle) {
   return base::MakeUnique<ChromeNavigationUIData>(navigation_handle);
 }
 
 content::DevToolsManagerDelegate*
@@ skipping 207 matching lines @@
   // displayed URL when rewriting chrome://help to chrome://settings/help.
   return url->SchemeIs(content::kChromeUIScheme) &&
          url->host() == chrome::kChromeUISettingsHost;
 }
 
 // static
 void ChromeContentBrowserClient::SetDefaultQuotaSettingsForTesting(
     const storage::QuotaSettings* settings) {
   g_default_quota_settings = settings;
 }