Add Keyboard Latency UMA Metrics.

content/browser/renderer_host/render_widget_host_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/browser/renderer_host/render_widget_host_impl.h"
 
 #include <math.h>
 
 #include <set>
 #include <tuple>
@@ skipping 1138 matching lines @@
       view_->ProcessAckedTouchEvent(
           touch_with_latency, INPUT_EVENT_ACK_STATE_CONSUMED);
     }
     return;
   }
 
   DispatchInputEventWithLatencyInfo(touch_event, &touch_with_latency.latency);
   input_router_->SendTouchEvent(touch_with_latency);
 }
 
-void RenderWidgetHostImpl::ForwardKeyboardEvent(
-    const NativeWebKeyboardEvent& key_event) {
-  ForwardKeyboardEventWithCommands(key_event, nullptr, nullptr);
+void RenderWidgetHostImpl::ForwardKeyboardEventWithLatencyInfo(
+    const NativeWebKeyboardEvent& key_event,
+    const ui::LatencyInfo& ui_latency) {
+  ForwardKeyboardEventWithCommands(key_event, ui_latency, nullptr, nullptr);
 }
 
 void RenderWidgetHostImpl::ForwardKeyboardEventWithCommands(
     const NativeWebKeyboardEvent& key_event,
+    const ui::LatencyInfo& ui_latency,
     const std::vector<EditCommand>* commands,
     bool* update_event) {
   TRACE_EVENT0("input", "RenderWidgetHostImpl::ForwardKeyboardEvent");
   if (owner_delegate_ &&
       !owner_delegate_->MayRenderWidgetForwardKeyboardEvent(key_event)) {
     return;
   }
 
   if (ShouldDropInputEvents())
     return;
@@ skipping 56 matching lines @@
         is_shortcut = true;
         break;
     }
 
     if (key_event.type() == WebKeyboardEvent::RawKeyDown)
       suppress_events_until_keydown_ = false;
   }
 
   if (touch_emulator_ && touch_emulator_->HandleKeyboardEvent(key_event))
     return;
-  ui::LatencyInfo latency_info(ui::SourceEventType::OTHER);
   NativeWebKeyboardEventWithLatencyInfo key_event_with_latency(key_event,
-                                                               latency_info);
+                                                               ui_latency);
   key_event_with_latency.event.isBrowserShortcut = is_shortcut;
   DispatchInputEventWithLatencyInfo(key_event, &key_event_with_latency.latency);
   // TODO(foolip): |InputRouter::SendKeyboardEvent()| may filter events, in
   // which the commands will be treated as belonging to the next key event.
   // InputMsg_SetEditCommandsForNextKeyEvent should only be sent if
   // InputMsg_HandleInputEvent is, but has to be sent first.
   // https://crbug.com/684298
   if (commands && !commands->empty()) {
     Send(
         new InputMsg_SetEditCommandsForNextKeyEvent(GetRoutingID(), *commands));
@@ skipping 1385 matching lines @@
 
   // After navigation, if a frame belonging to the new page is received, stop
   // the timer that triggers clearing the graphics of the last page.
   if (last_received_content_source_id_ >= current_content_source_id_ &&
       new_content_rendering_timeout_->IsRunning()) {
     new_content_rendering_timeout_->Stop();
   }
 }
 
 }  // namespace content