Pass MotionEvent tool type to Blink.

content/browser/renderer_host/input/motion_event_web.cc

 // Copyright 2014 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.
 
 // MSVC++ requires this to be set before any other includes to get M_PI.
 #define _USE_MATH_DEFINES
 
 #include "content/browser/renderer_host/input/motion_event_web.h"
 
 #include <cmath>
 
 #include "base/logging.h"
 #include "content/browser/renderer_host/input/web_input_event_util.h"
 #include "content/common/input/web_touch_event_traits.h"
 
 using blink::WebInputEvent;
+using blink::WebPointerProperties;
 using blink::WebTouchEvent;
 using blink::WebTouchPoint;
 
 namespace content {
 namespace {
 
 ui::MotionEvent::Action GetActionFrom(const WebTouchEvent& event) {
   DCHECK(event.touchesLength);
   switch (event.type) {
     case WebInputEvent::TouchStart:
@@ skipping 123 matching lines @@
 }
 
 base::TimeTicks MotionEventWeb::GetEventTime() const {
   return base::TimeTicks() +
          base::TimeDelta::FromMicroseconds(event_.timeStampSeconds *
                                            base::Time::kMicrosecondsPerSecond);
 }
 
 ui::MotionEvent::ToolType MotionEventWeb::GetToolType(
     size_t pointer_index) const {
-  // TODO(jdduke): Plumb tool type from the platform event, crbug.com/404128.
   DCHECK_LT(pointer_index, GetPointerCount());
-  return TOOL_TYPE_UNKNOWN;
+
+  const WebPointerProperties& pointer = event_.touches[pointer_index];
+
+  switch (pointer.pointerType) {
+    case WebPointerProperties::PointerTypeUnknown:
+      return TOOL_TYPE_UNKNOWN;
+    case WebPointerProperties::PointerTypeMouse:
+      return TOOL_TYPE_MOUSE;
+    case WebPointerProperties::PointerTypePen:
+      return TOOL_TYPE_STYLUS;
+    case WebPointerProperties::PointerTypeTouch:
+      return TOOL_TYPE_FINGER;
+    default:
+      NOTREACHED() << "Unhandled pointer type " << pointer.pointerType;
+      return TOOL_TYPE_UNKNOWN;
+  }
 }
 
 int MotionEventWeb::GetButtonState() const {
   return 0;
 }
 
 int MotionEventWeb::GetFlags() const {
   return WebEventModifiersToEventFlags(event_.modifiers);
 }
 
 }  // namespace content