Perform direct routing of mouse events when the pointer is locked.

content/browser/renderer_host/render_widget_host_view_event_handler.cc

 // Copyright 2016 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_view_event_handler.h"
 
 #include "base/metrics/user_metrics_action.h"
 #include "content/browser/renderer_host/input/touch_selection_controller_client_aura.h"
 #include "content/browser/renderer_host/overscroll_controller.h"
 #include "content/browser/renderer_host/render_view_host_delegate.h"
@@ skipping 672 matching lines @@
     ui::MouseEvent* event) {
   aura::client::CursorClient* cursor_client =
       aura::client::GetCursorClient(window_->GetRootWindow());
 
   DCHECK(!cursor_client || !cursor_client->IsCursorVisible());
 
   if (event->type() == ui::ET_MOUSEWHEEL) {
     blink::WebMouseWheelEvent mouse_wheel_event =
         ui::MakeWebMouseWheelEvent(static_cast<ui::MouseWheelEvent&>(*event),
                                    base::Bind(&GetScreenLocationFromEvent));
-    if (mouse_wheel_event.deltaX != 0 || mouse_wheel_event.deltaY != 0)
-      host_->ForwardWheelEvent(mouse_wheel_event);
+    if (mouse_wheel_event.deltaX != 0 || mouse_wheel_event.deltaY != 0) {
+      if (ShouldRouteEvent(event)) {
+        host_->delegate()->GetInputEventRouter()->RouteMouseWheelEvent(
+            host_view_, &mouse_wheel_event, *event->latency());
+      } else {
+        ProcessMouseWheelEvent(mouse_wheel_event, *event->latency());
+      }
+    }
     return;
   }
 
   gfx::Point center(gfx::Rect(window_->bounds().size()).CenterPoint());
 
   // If we receive non client mouse messages while we are in the locked state
   // it probably means that the mouse left the borders of our window and
   // needs to be moved back to the center.
   if (event->flags() & ui::EF_IS_NON_CLIENT) {
     // TODO(jonross): ideally this would not be done for mus (crbug.com/621412)
@@ skipping 37 matching lines @@
   } else {
     // Check if the mouse has reached the border and needs to be centered.
     if (ShouldMoveToCenter()) {
       synthetic_move_sent_ = true;
       window_->MoveCursorTo(center);
     }
     bool is_selection_popup = NeedsInputGrab(popup_child_host_view_);
     // Forward event to renderer.
     if (CanRendererHandleEvent(event, mouse_locked_, is_selection_popup) &&
         !(event->flags() & ui::EF_FROM_TOUCH)) {
-      host_->ForwardMouseEvent(mouse_event);
+      if (ShouldRouteEvent(event)) {
+        host_->delegate()->GetInputEventRouter()->RouteMouseEvent(
+            host_view_, &mouse_event, *event->latency());
+      } else {
+        ProcessMouseEvent(mouse_event, *event->latency());
+      }
       // Ensure that we get keyboard focus on mouse down as a plugin window
       // may have grabbed keyboard focus.
       if (event->type() == ui::ET_MOUSE_PRESSED)
         SetKeyboardFocus();
     }
   }
 }
 
 void RenderWidgetHostViewEventHandler::ModifyEventMovementAndCoords(
     const ui::MouseEvent& ui_mouse_event,
@@ skipping 94 matching lines @@
   host_->ForwardWheelEventWithLatencyInfo(event, latency);
 }
 
 void RenderWidgetHostViewEventHandler::ProcessTouchEvent(
     const blink::WebTouchEvent& event,
     const ui::LatencyInfo& latency) {
   host_->ForwardTouchEventWithLatencyInfo(event, latency);
 }
 
 }  // namespace content