Notify WebContentsObservers of user interactions.

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 <utility>
 
@@ skipping 1427 matching lines @@
   NotifyRendererUnresponsive();
 }
 
 void RenderWidgetHostImpl::RendererIsResponsive() {
   if (is_unresponsive_) {
     is_unresponsive_ = false;
     NotifyRendererResponsive();
   }
 }
 
+void RenderWidgetHostImpl::OnUserInteraction(
+    const blink::WebInputEvent::Type type) {
+  if (delegate_)
+    delegate_->OnUserInteraction(type);

[nasko, 2015/10/28 17:36:12]

Why have a separate method for a two line body? Can't this just be inlined into
the callsite?

[dominickn, 2015/10/29 00:03:19]

Done.

+}
+
 void RenderWidgetHostImpl::ClearDisplayedGraphics() {
   NotifyNewContentRenderingTimeoutForTesting();
   if (view_)
     view_->ClearCompositorFrame();
 }
 
 void RenderWidgetHostImpl::OnRenderProcessGone(int status, int exit_code) {
   // RenderFrameHost owns a RenderWidgetHost when it needs one, in which case
   // it handles destruction.
   if (!owned_by_render_frame_host_) {
@@ skipping 393 matching lines @@
     return INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS;
 
   if (!process_->HasConnection())
     return INPUT_EVENT_ACK_STATE_UNKNOWN;
 
   if (event.type == WebInputEvent::MouseDown ||
       event.type == WebInputEvent::GestureTapDown) {
     OnUserGesture();
   }
 
+  if (event.type == WebInputEvent::MouseDown ||
+      event.type == WebInputEvent::GestureTapDown ||
+      event.type == WebInputEvent::RawKeyDown) {
+    OnUserInteraction(event.type);
+  }
+
   return view_ ? view_->FilterInputEvent(event)
                : INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
 }
 
 void RenderWidgetHostImpl::IncrementInFlightEventCount() {
   increment_in_flight_event_count();
   if (!is_hidden_)
     StartHangMonitorTimeout(hung_renderer_delay_);
 }
 
@@ skipping 315 matching lines @@
 }
 
 #if defined(OS_WIN)
 gfx::NativeViewAccessible
     RenderWidgetHostImpl::GetParentNativeViewAccessible() {
   return delegate_ ? delegate_->GetParentNativeViewAccessible() : NULL;
 }
 #endif
 
 }  // namespace content