Add MemoryCoordinator

content/browser/renderer_host/render_process_host_impl.cc

 // Copyright 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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 26 matching lines @@
 #include "base/strings/stringprintf.h"
 #include "base/supports_user_data.h"
 #include "base/sys_info.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/trace_event/trace_event.h"
 #include "base/tracked_objects.h"
 #include "build/build_config.h"
 #include "cc/base/switches.h"
+#include "components/memory_coordinator/browser/memory_state_notifier.h"
 #include "components/scheduler/common/scheduler_switches.h"
 #include "components/tracing/common/tracing_switches.h"
 #include "content/browser/appcache/appcache_dispatcher_host.h"
 #include "content/browser/appcache/chrome_appcache_service.h"
 #include "content/browser/background_sync/background_sync_service_impl.h"
 #include "content/browser/bad_message.h"
 #include "content/browser/blob_storage/blob_dispatcher_host.h"
 #include "content/browser/blob_storage/chrome_blob_storage_context.h"
 #include "content/browser/browser_child_process_host_impl.h"
 #include "content/browser/browser_main.h"
@@ skipping 1340 matching lines @@
     switches::kEnableExperimentalCanvasFeatures,
     switches::kEnableExperimentalWebPlatformFeatures,
     switches::kEnableHeapProfiling,
     switches::kEnableGPUClientLogging,
     switches::kEnableGpuClientTracing,
     switches::kEnableGpuMemoryBufferVideoFrames,
     switches::kEnableGPUServiceLogging,
     switches::kEnableIconNtp,
     switches::kEnableLowResTiling,
     switches::kEnableMediaSuspend,
+    switches::kEnableMemoryCoordinator,
     switches::kEnableInbandTextTracks,
     switches::kEnableLCDText,
     switches::kEnableLogging,
     switches::kEnableMemoryBenchmarking,
     switches::kEnableNetworkInformation,
     switches::kEnableOverlayScrollbar,
     switches::kEnablePinch,
     switches::kEnablePluginPlaceholderTesting,
     switches::kEnablePreciseMemoryInfo,
     switches::kEnablePreferCompositingToLCDText,
@@ skipping 1132 matching lines @@
 
   if (child_process_launcher_) {
     DCHECK(child_process_launcher_->GetProcess().IsValid());
     DCHECK(!is_process_backgrounded_);
 
     if (mojo_child_connection_) {
       mojo_child_connection_->SetProcessHandle(
           child_process_launcher_->GetProcess().Handle());
     }
 
+    if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+            switches::kEnableMemoryCoordinator) &&
+        mojo_application_host_) {
+      memory_coordinator::mojom::ChildMemoryCoordinatorPtr coordinator;
+      GetServiceRegistry()->ConnectToRemoteService(
+          mojo::GetProxy(&coordinator));
+      BrowserMainLoop::GetInstance()->memory_state_notifier()->AddChild(
+          std::move(coordinator));
+    }
+
     // Not all platforms launch processes in the same backgrounded state. Make
     // sure |is_process_backgrounded_| reflects this platform's initial process
     // state.
     is_process_backgrounded_ =
         child_process_launcher_->GetProcess().IsProcessBackgrounded();
 
     // Disable updating process priority on startup for now as it incorrectly
     // results in backgrounding foreground navigations until their first commit
     // is made. A better long term solution would be to be aware of the tab's
     // visibility at this point. https://crbug.com/560446.
@@ skipping 245 matching lines @@
   LOG(ERROR) << "Terminating render process for bad Mojo message: " << error;
 
   // The ReceivedBadMessage call below will trigger a DumpWithoutCrashing. Alias
   // enough information here so that we can determine what the bad message was.
   base::debug::Alias(&error);
   bad_message::ReceivedBadMessage(process.get(),
                                   bad_message::RPH_MOJO_PROCESS_ERROR);
 }
 
 }  // namespace content