Record swap metrics

content/browser/browser_main_loop.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/browser_main_loop.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <utility>
@@ skipping 50 matching lines @@
 #include "content/browser/gpu/compositor_util.h"
 #include "content/browser/gpu/gpu_data_manager_impl.h"
 #include "content/browser/gpu/gpu_process_host.h"
 #include "content/browser/gpu/shader_cache_factory.h"
 #include "content/browser/histogram_synchronizer.h"
 #include "content/browser/leveldb_wrapper_impl.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
 #include "content/browser/loader_delegate_impl.h"
 #include "content/browser/media/media_internals.h"
 #include "content/browser/memory/memory_coordinator_impl.h"
+#include "content/browser/memory/swap_metrics_observer.h"
 #include "content/browser/net/browser_online_state_observer.h"
 #include "content/browser/renderer_host/media/media_stream_manager.h"
 #include "content/browser/renderer_host/render_process_host_impl.h"
 #include "content/browser/service_manager/service_manager_context.h"
 #include "content/browser/speech/speech_recognition_manager_impl.h"
 #include "content/browser/startup_task_runner.h"
 #include "content/browser/utility_process_host_impl.h"
 #include "content/browser/webui/content_web_ui_controller_factory.h"
 #include "content/browser/webui/url_data_manager.h"
 #include "content/common/content_switches_internal.h"
@@ skipping 1506 matching lines @@
   if (base::FeatureList::IsEnabled(features::kMemoryCoordinator)) {
     // Disable MemoryPressureListener when memory coordinator is enabled.
     base::MemoryPressureListener::SetNotificationsSuppressed(true);
     auto* coordinator = MemoryCoordinatorImpl::GetInstance();
     if (memory_pressure_monitor_) {
       memory_pressure_monitor_->SetDispatchCallback(
           base::Bind(&MemoryCoordinatorImpl::RecordMemoryPressure,
                      base::Unretained(coordinator)));
     }
   }
+
+  auto* swap_metrics_observer = SwapMetricsObserver::GetInstance();
+  if (swap_metrics_observer)
+    swap_metrics_observer->Start();
 }
 
 bool BrowserMainLoop::InitializeToolkit() {
   TRACE_EVENT0("startup", "BrowserMainLoop::InitializeToolkit");
 
   // TODO(evan): this function is rather subtle, due to the variety
   // of intersecting ifdefs we have.  To keep it easy to follow, there
   // are no #else branches on any #ifs.
   // TODO(stevenjb): Move platform specific code into platform specific Parts
   // (Need to add InitializeToolkit stage to BrowserParts).
@@ skipping 149 matching lines @@
         BrowserThread::GetTaskRunnerForThread(BrowserThread::FILE),
         MediaInternals::GetInstance());
   }
   CHECK(audio_manager_);
 
   audio_system_ = media::AudioSystemImpl::Create(audio_manager_.get());
   CHECK(audio_system_);
 }
 
 }  // namespace content