Add support for single sample metrics.

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 90 matching lines @@
 #include "content/browser/renderer_host/clipboard_message_filter.h"
 #include "content/browser/renderer_host/database_message_filter.h"
 #include "content/browser/renderer_host/file_utilities_message_filter.h"
 #include "content/browser/renderer_host/media/audio_input_renderer_host.h"
 #include "content/browser/renderer_host/media/audio_renderer_host.h"
 #include "content/browser/renderer_host/media/media_stream_dispatcher_host.h"
 #include "content/browser/renderer_host/media/peer_connection_tracker_host.h"
 #include "content/browser/renderer_host/media/video_capture_host.h"
 #include "content/browser/renderer_host/offscreen_canvas_compositor_frame_sink_provider_impl.h"
 #include "content/browser/renderer_host/offscreen_canvas_surface_factory_impl.h"
+#include "content/browser/renderer_host/one_shot_metric_host.h"
 #include "content/browser/renderer_host/pepper/pepper_message_filter.h"
 #include "content/browser/renderer_host/pepper/pepper_renderer_connection.h"
 #include "content/browser/renderer_host/render_message_filter.h"
 #include "content/browser/renderer_host/render_view_host_delegate.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/renderer_host/render_widget_helper.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_frame_subscriber.h"
 #include "content/browser/renderer_host/text_input_client_message_filter.h"
 #include "content/browser/resolve_proxy_msg_helper.h"
@@ skipping 1187 matching lines @@
 
   registry->AddInterface(base::Bind(&device::GamepadMonitor::Create));
 
   registry->AddInterface(base::Bind(&RenderProcessHostImpl::CreateMusGpuRequest,
                                     base::Unretained(this)));
 
   registry->AddInterface(
       base::Bind(&VideoCaptureHost::Create,
                  BrowserMainLoop::GetInstance()->media_stream_manager()));
 
+  registry->AddInterface(base::Bind(&OneShotMetricHost::Create));
+
   // This is to support usage of WebSockets in cases in which there is no
   // associated RenderFrame (e.g., Shared Workers).
   AddUIThreadInterface(
       registry.get(), base::Bind(&WebSocketManager::CreateWebSocket, GetID(),
                                  MSG_ROUTING_NONE));
 
   // Chrome browser process only provides DiscardableSharedMemory service when
   // Chrome is not running in mus+ash.
   if (!service_manager::ServiceManagerIsRemote()) {
     discardable_memory::DiscardableSharedMemoryManager* manager =
@@ skipping 1732 matching lines @@
   LOG(ERROR) << "Terminating render process for bad Mojo message: " << error;
 
   // The ReceivedBadMessage call below will trigger a DumpWithoutCrashing.
   // Capture the error message in a crash key value.
   base::debug::ScopedCrashKey error_key_value("mojo-message-error", error);
   bad_message::ReceivedBadMessage(render_process_id,
                                   bad_message::RPH_MOJO_PROCESS_ERROR);
 }
 
 }  // namespace content