Add Settings[, Oberser] java code and JNI bridge.

blimp/client/core/settings/android/settings_observer_proxy.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 "blimp/client/core/settings/android/settings_observer_proxy.h"
+
+#include "base/android/jni_android.h"
+#include "base/android/jni_string.h"
+#include "jni/SettingsObserverProxy_jni.h"
+
+namespace blimp {
+namespace client {
+
+jlong Init(JNIEnv* env,
+           const base::android::JavaParamRef<jobject>& jobj,
+           const base::android::JavaParamRef<jobject>& jsettings) {
+  SettingsAndroid* settings_android =
+      SettingsAndroid::FromJavaObject(env, jsettings);
+  CHECK(settings_android);
+
+  return reinterpret_cast<intptr_t>(
+      new SettingsObserverProxy(env, jobj, settings_android));
+}
+
+// static
+bool SettingsObserverProxy::RegisterJni(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+SettingsObserverProxy::SettingsObserverProxy(JNIEnv* env,
+                                             jobject obj,
+                                             SettingsAndroid* settings_android)
+    : settings_android_(settings_android) {
+  settings_android_->AddObserver(this);
+  java_obj_.Reset(env, obj);
+}
+
+SettingsObserverProxy::~SettingsObserverProxy() {
+  if (settings_android_)
+    settings_android_->RemoveObserver(this);
+}
+
+void SettingsObserverProxy::Destroy(
+    JNIEnv* env,
+    const base::android::JavaParamRef<jobject>& jobj) {
+  settings_android_->RemoveObserver(this);
+  delete this;
+}
+
+void SettingsObserverProxy::OnBlimpModeEnabled(bool enable) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_SettingsObserverProxy_onBlimpModeEnabled(env, java_obj_, enable);
+}
+
+void SettingsObserverProxy::OnShowNetworkStatsChanged(bool enable) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_SettingsObserverProxy_onShowNetworkStatsChanged(env, java_obj_, enable);
+}
+
+void SettingsObserverProxy::OnRecordWholeDocumentChanged(bool enable) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_SettingsObserverProxy_onRecordWholeDocumentChanged(env, java_obj_,
+                                                          enable);
+}
+
+void SettingsObserverProxy::OnRestartRequired() {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_SettingsObserverProxy_onRestartRequired(env, java_obj_);
+}
+
+}  // namespace client
+}  // namespace blimp