Vibration API : migrate to device/vibration using mojo.

device/vibration/vibration_manager_impl_android.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.
+
+#include "device/vibration/vibration_manager_impl_android.h"
+
+#include "base/bind.h"
+#include "device/vibration/vibration_manager_impl.h"
+#include "jni/VibrationProvider_jni.h"
+
+using base::android::AttachCurrentThread;
+
+namespace device {
+
+namespace {
+const int64 kMinimumVibrationDurationMs = 1;  // 1 millisecond
+const int64 kMaximumVibrationDurationMs = 10000;  // 10 seconds
+}
+
+// static
+VibrationManagerImplAndroid* VibrationManagerImplAndroid::Create() {
+  return new VibrationManagerImplAndroid();
+}
+
+VibrationManagerImplAndroid::VibrationManagerImplAndroid() {
+}
+
+VibrationManagerImplAndroid::~VibrationManagerImplAndroid() {
+}
+
+// static
+bool VibrationManagerImplAndroid::Register(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+void VibrationManagerImplAndroid::Vibrate(int64 milliseconds) {
+  if (j_vibration_provider_.is_null()) {
+    j_vibration_provider_.Reset(
+        Java_VibrationProvider_create(
+            AttachCurrentThread(),
+            base::android::GetApplicationContext()));
+  }
+
+  // Though the Blink implementation already sanitizes vibration times, don't
+  // trust any values passed from the client.
+  int64 sanitized_milliseconds = std::max(kMinimumVibrationDurationMs,
+      std::min(milliseconds, kMaximumVibrationDurationMs));
+
+  Java_VibrationProvider_vibrate(AttachCurrentThread(),
+                                 j_vibration_provider_.obj(),
+                                 sanitized_milliseconds);
+}
+
+void VibrationManagerImplAndroid::Cancel() {
+  // If somehow a cancel message is received before this object was
+  // instantiated, it means there is no current vibration anyway. Just return.
+  if (j_vibration_provider_.is_null())
+    return;
+  Java_VibrationProvider_cancelVibration(AttachCurrentThread(),
+                                         j_vibration_provider_.obj());
+}
+
+// static
+void VibrationManagerImpl::Create(
+    mojo::InterfaceRequest<VibrationManager> request) {
+  BindToRequest(VibrationManagerImplAndroid::Create(), &request);
+}
+
+}  // namespace device