[Tracking Patch] Unified gesture detection

content/browser/renderer_host/input/native_web_touch_event_android.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/input/native_web_touch_event.h"
+
+#include "base/android/jni_android.h"
+#include "content/browser/renderer_host/input/web_input_event_builders_android.h"
+
+namespace content {
+
+NativeWebTouchEvent::NativeWebTouchEvent(jobject android_motion_event,
+                                         bool should_recycle,
+                                         float device_scale_factor)
+    : android_event(base::android::AttachCurrentThread(),
+                    android_motion_event,
+                    should_recycle),
+      device_scale_factor(device_scale_factor) {
+  WebTouchEvent::operator=(
+      WebTouchEventBuilder::Build(android_event, device_scale_factor));
+}
+
+NativeWebTouchEvent::NativeWebTouchEvent(const NativeWebTouchEvent& other)
+    : WebTouchEvent(other),
+      android_event(other.android_event),
+      device_scale_factor(other.device_scale_factor) {}
+
+NativeWebTouchEvent::~NativeWebTouchEvent() {}
+
+NativeWebTouchEvent& NativeWebTouchEvent::operator=(
+    const NativeWebTouchEvent& other) {
+  WebTouchEvent::operator=(other);
+  android_event = other.android_event;
+  device_scale_factor = other.device_scale_factor;
+  return *this;
+}
+
+}  // namespace content