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 1024 matching lines @@
     return;
   }
 
   ForwardMouseEventWithLatencyInfo(mouse_event,
                                    ui::LatencyInfo(ui::SourceEventType::OTHER));
   if (owner_delegate_)
     owner_delegate_->RenderWidgetDidForwardMouseEvent(mouse_event);
 }
 
 void RenderWidgetHostImpl::ForwardMouseEventWithLatencyInfo(
-      const blink::WebMouseEvent& mouse_event,
-      const ui::LatencyInfo& ui_latency) {
+    const blink::WebMouseEvent& mouse_event,
+    const ui::LatencyInfo& latency) {
   TRACE_EVENT2("input", "RenderWidgetHostImpl::ForwardMouseEvent", "x",
                mouse_event.PositionInWidget().x, "y",
                mouse_event.PositionInWidget().y);
 
   for (size_t i = 0; i < mouse_event_callbacks_.size(); ++i) {
     if (mouse_event_callbacks_[i].Run(mouse_event))
       return;
   }
 
   if (ShouldDropInputEvents())
     return;
 
   if (touch_emulator_ && touch_emulator_->HandleMouseEvent(mouse_event))
     return;
 
-  MouseEventWithLatencyInfo mouse_with_latency(mouse_event, ui_latency);
+  MouseEventWithLatencyInfo mouse_with_latency(mouse_event, latency);
   DispatchInputEventWithLatencyInfo(mouse_event, &mouse_with_latency.latency);
   input_router_->SendMouseEvent(mouse_with_latency);
 }
 
 void RenderWidgetHostImpl::ForwardWheelEvent(
     const WebMouseWheelEvent& wheel_event) {
   ForwardWheelEventWithLatencyInfo(wheel_event,
                                    ui::LatencyInfo(ui::SourceEventType::WHEEL));
 }
 
 void RenderWidgetHostImpl::ForwardWheelEventWithLatencyInfo(
-      const blink::WebMouseWheelEvent& wheel_event,
-      const ui::LatencyInfo& ui_latency) {
+    const blink::WebMouseWheelEvent& wheel_event,
+    const ui::LatencyInfo& latency) {
   TRACE_EVENT2("input", "RenderWidgetHostImpl::ForwardWheelEvent", "dx",
                wheel_event.delta_x, "dy", wheel_event.delta_y);
 
   if (ShouldDropInputEvents())
     return;
 
   if (touch_emulator_ && touch_emulator_->HandleMouseWheelEvent(wheel_event))
     return;
 
-  MouseWheelEventWithLatencyInfo wheel_with_latency(wheel_event, ui_latency);
+  MouseWheelEventWithLatencyInfo wheel_with_latency(wheel_event, latency);
   DispatchInputEventWithLatencyInfo(wheel_event, &wheel_with_latency.latency);
   input_router_->SendWheelEvent(wheel_with_latency);
 }
 
 void RenderWidgetHostImpl::ForwardEmulatedGestureEvent(
     const blink::WebGestureEvent& gesture_event) {
   ForwardGestureEvent(gesture_event);
 }
 
 void RenderWidgetHostImpl::ForwardGestureEvent(
     const blink::WebGestureEvent& gesture_event) {
   ForwardGestureEventWithLatencyInfo(
       gesture_event,
       ui::WebInputEventTraits::CreateLatencyInfoForWebGestureEvent(
           gesture_event));
 }
 
 void RenderWidgetHostImpl::ForwardGestureEventWithLatencyInfo(
     const blink::WebGestureEvent& gesture_event,
-    const ui::LatencyInfo& ui_latency) {
+    const ui::LatencyInfo& latency) {
   TRACE_EVENT0("input", "RenderWidgetHostImpl::ForwardGestureEvent");
   // Early out if necessary, prior to performing latency logic.
   if (ShouldDropInputEvents())
     return;
 
   // TODO(wjmaclean) Remove the code for supporting resending gesture events
   // when WebView transitions to OOPIF and BrowserPlugin is removed.
   // http://crbug.com/533069
   bool* is_in_gesture_scroll =
       gesture_event.source_device ==
@@ skipping 30 matching lines @@
     ForwardGestureEventWithLatencyInfo(
         CreateScrollBeginForWrapping(gesture_event),
         ui::WebInputEventTraits::CreateLatencyInfoForWebGestureEvent(
             gesture_event));
   }
 
   // Delegate must be non-null, due to |ShouldDropInputEvents()| test.
   if (delegate_->PreHandleGestureEvent(gesture_event))
     return;
 
-  GestureEventWithLatencyInfo gesture_with_latency(gesture_event, ui_latency);
+  GestureEventWithLatencyInfo gesture_with_latency(gesture_event, latency);
   DispatchInputEventWithLatencyInfo(gesture_event,
                                     &gesture_with_latency.latency);
   input_router_->SendGestureEvent(gesture_with_latency);
 
   if (scroll_update_needs_wrapping) {
     ForwardGestureEventWithLatencyInfo(
         CreateScrollEndForWrapping(gesture_event),
         ui::WebInputEventTraits::CreateLatencyInfoForWebGestureEvent(
             gesture_event));
   }
 }
 
 void RenderWidgetHostImpl::ForwardEmulatedTouchEvent(
       const blink::WebTouchEvent& touch_event) {
   TRACE_EVENT0("input", "RenderWidgetHostImpl::ForwardEmulatedTouchEvent");
   ui::LatencyInfo latency_info(ui::SourceEventType::TOUCH);
   TouchEventWithLatencyInfo touch_with_latency(touch_event, latency_info);
   DispatchInputEventWithLatencyInfo(touch_event, &touch_with_latency.latency);
   input_router_->SendTouchEvent(touch_with_latency);
 }
 
 void RenderWidgetHostImpl::ForwardTouchEventWithLatencyInfo(
-      const blink::WebTouchEvent& touch_event,
-      const ui::LatencyInfo& ui_latency) {
+    const blink::WebTouchEvent& touch_event,
+    const ui::LatencyInfo& latency) {
   TRACE_EVENT0("input", "RenderWidgetHostImpl::ForwardTouchEvent");
 
   // Always forward TouchEvents for touch stream consistency. They will be
   // ignored if appropriate in FilterInputEvent().
 
-  TouchEventWithLatencyInfo touch_with_latency(touch_event, ui_latency);
+  TouchEventWithLatencyInfo touch_with_latency(touch_event, latency);
   if (touch_emulator_ &&
       touch_emulator_->HandleTouchEvent(touch_with_latency.event)) {
     if (view_) {
       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& latency) {
+  ForwardKeyboardEventWithCommands(key_event, latency, nullptr, nullptr);
 }
 
 void RenderWidgetHostImpl::ForwardKeyboardEventWithCommands(
     const NativeWebKeyboardEvent& key_event,
+    const ui::LatencyInfo& 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.GetType() == WebKeyboardEvent::kRawKeyDown)
       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);
+                                                               latency);
   key_event_with_latency.event.is_browser_shortcut = 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 1339 matching lines @@
   RenderProcessHost* rph = GetProcess();
   for (std::vector<IPC::Message>::const_iterator i = messages.begin();
        i != messages.end(); ++i) {
     rph->OnMessageReceived(*i);
     if (i->dispatch_error())
       rph->OnBadMessageReceived(*i);
   }
 }
 
 }  // namespace content