Re-reland: Add MemoryCoordinator

content/renderer/render_thread_impl.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/renderer/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <utility>
@@ skipping 28 matching lines @@
 #include "build/build_config.h"
 #include "cc/base/histograms.h"
 #include "cc/base/switches.h"
 #include "cc/blink/web_external_bitmap_impl.h"
 #include "cc/blink/web_layer_impl.h"
 #include "cc/output/output_surface.h"
 #include "cc/output/vulkan_in_process_context_provider.h"
 #include "cc/raster/task_graph_runner.h"
 #include "cc/trees/layer_tree_host_common.h"
 #include "cc/trees/layer_tree_settings.h"
+#include "components/memory_coordinator/child/child_memory_coordinator_impl.h"
 #include "components/scheduler/child/compositor_worker_scheduler.h"
 #include "components/scheduler/child/webthread_base.h"
 #include "components/scheduler/child/webthread_impl_for_worker_scheduler.h"
 #include "components/scheduler/renderer/renderer_scheduler.h"
 #include "content/child/appcache/appcache_dispatcher.h"
 #include "content/child/appcache/appcache_frontend_impl.h"
 #include "content/child/blob_storage/blob_message_filter.h"
 #include "content/child/child_discardable_shared_memory_manager.h"
 #include "content/child/child_gpu_memory_buffer_manager.h"
 #include "content/child/child_histogram_message_filter.h"
@@ skipping 770 matching lines @@
       media::MediaCodecUtil::IsMediaCodecAvailable()) {
     media::EnablePlatformDecoderSupport();
   }
 #endif
 
   memory_pressure_listener_.reset(new base::MemoryPressureListener(
       base::Bind(&RenderThreadImpl::OnMemoryPressure, base::Unretained(this)),
       base::Bind(&RenderThreadImpl::OnSyncMemoryPressure,
                  base::Unretained(this))));
 
+  if (memory_coordinator::IsEnabled()) {
+    // TODO(bashi): Revisit how to manage the lifetime of
+    // ChildMemoryCoordinatorImpl.
+    // https://codereview.chromium.org/2094583002/#msg52
+    memory_coordinator::mojom::MemoryCoordinatorHandlePtr parent_coordinator;
+    GetRemoteInterfaces()->GetInterface(mojo::GetProxy(&parent_coordinator));
+    memory_coordinator_.reset(
+        new memory_coordinator::ChildMemoryCoordinatorImpl(
+            std::move(parent_coordinator)));
+  }
+
   int num_raster_threads = 0;
   std::string string_value =
       command_line.GetSwitchValueASCII(switches::kNumRasterThreads);
   bool parsed_num_raster_threads =
       base::StringToInt(string_value, &num_raster_threads);
   DCHECK(parsed_num_raster_threads) << string_value;
   DCHECK_GT(num_raster_threads, 0);
 
   // TODO(vmpstr): If the flag sticks, we should clean it up and always have
   // image decode tasks.
@@ skipping 1379 matching lines @@
       v8_memory_pressure_level == v8::MemoryPressureLevel::kCritical)
     v8_memory_pressure_level = v8::MemoryPressureLevel::kModerate;
 
   blink::mainThreadIsolate()->MemoryPressureNotification(
       v8_memory_pressure_level);
   blink::MemoryPressureNotificationToWorkerThreadIsolates(
       v8_memory_pressure_level);
 }
 
 }  // namespace content