Do not increase the pointer id when type is eraser

third_party/WebKit/Source/core/events/PointerEventFactoryTest.cpp

 // Copyright 2015 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 "core/events/PointerEventFactory.h"
 
 #include "core/frame/FrameView.h"
 #include "core/page/Page.h"
 #include "public/platform/WebPointerProperties.h"
 #include <climits>
 #include <gtest/gtest.h>
 
 namespace blink {
 
 namespace {
 
 const char* PointerTypeNameForWebPointPointerType(
     WebPointerProperties::PointerType type) {
   switch (type) {
     case WebPointerProperties::PointerType::kUnknown:
       return "";
     case WebPointerProperties::PointerType::kTouch:
       return "touch";
     case WebPointerProperties::PointerType::kPen:
-    case WebPointerProperties::PointerType::kEraser:
       return "pen";
     case WebPointerProperties::PointerType::kMouse:
       return "mouse";
+    default:
+      NOTREACHED();
+      return "";
   }
-  NOTREACHED();
-  return "";
 }
 }
 
 class PointerEventFactoryTest : public ::testing::Test {
  protected:
   void SetUp() override;
   PointerEvent* CreateAndCheckTouchCancel(WebPointerProperties::PointerType,
                                           int raw_id,
                                           int unique_id,
                                           bool is_primary);
@@ skipping 431 matching lines @@
 TEST_F(PointerEventFactoryTest, CoalescedEvents) {
   CreateAndCheckMouseEvent(WebPointerProperties::PointerType::kMouse, 0,
                            expected_mouse_id_, true,
                            WebInputEvent::kNoModifiers, 4);
   CreateAndCheckTouchEvent(WebPointerProperties::PointerType::kTouch, 0,
                            mapped_id_start_, true, WebTouchPoint::kStateMoved,
                            3);
 }
 
 }  // namespace blink