UI for the Data Saver InfoBar Promo

chrome/browser/net/spdyproxy/data_reduction_promo_infobar_delegate_android.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 "chrome/browser/net/spdyproxy/data_reduction_promo_infobar_delegate_android.h"
+
+#include "base/memory/ptr_util.h"
+#include "chrome/browser/android/android_theme_resources.h"
+#include "chrome/browser/infobars/infobar_service.h"
+#include "components/infobars/core/infobar.h"
+#include "components/infobars/core/infobar_delegate.h"
+#include "content/public/browser/web_contents.h"
+#include "grit/components_strings.h"
+#include "jni/DataReductionPromoInfoBarDelegate_jni.h"
+#include "ui/base/l10n/l10n_util.h"
+
+// static
+void DataReductionPromoInfoBarDelegateAndroid::Create(
+    content::WebContents* web_contents) {
+  InfoBarService* infobar_service =
+      InfoBarService::FromWebContents(web_contents);
+  infobar_service->AddInfoBar(
+      DataReductionPromoInfoBarDelegateAndroid::CreateInfoBar(
+          infobar_service,
+          base::MakeUnique<DataReductionPromoInfoBarDelegateAndroid>()));
+}
+
+DataReductionPromoInfoBarDelegateAndroid::
+    DataReductionPromoInfoBarDelegateAndroid() {}
+
+DataReductionPromoInfoBarDelegateAndroid::
+    ~DataReductionPromoInfoBarDelegateAndroid() {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_DataReductionPromoInfoBarDelegate_destroy(env);
+}
+
+// static
+bool DataReductionPromoInfoBarDelegateAndroid::Register(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+// static
+void DataReductionPromoInfoBarDelegateAndroid::Launch(
+    JNIEnv* env, jclass, jobject jweb_contents) {
+  content::WebContents* web_contents =
+      content::WebContents::FromJavaWebContents(jweb_contents);
+  DCHECK(web_contents);
+  Create(web_contents);
+}
+
+base::android::ScopedJavaLocalRef<jobject>
+DataReductionPromoInfoBarDelegateAndroid::CreateRenderInfoBar(JNIEnv* env) {
+  java_data_reduction_promo_delegate_.Reset(

[gone, 2016/06/29 17:25:08]

Since you're not actually doing anything with the Java delegate after this
point, you could get by with vanilla static calls on the Java
DataReductionPromoInfoBarDelegate instead of creating and storing it, e.g. how
the Accept() block works.

JNIEnv* env = base::android::AttachCurrentThread();
Java_DataReductionPromoInfoBarDelegate_showPromoInfoBar(env);

[megjablon, 2016/06/29 20:11:30]

Done.

+      Java_DataReductionPromoInfoBarDelegate_create(env));
+
+  return Java_DataReductionPromoInfoBarDelegate_showPromoInfoBar(
+      env, java_data_reduction_promo_delegate_.obj());
+}
+
+infobars::InfoBarDelegate::InfoBarIdentifier
+DataReductionPromoInfoBarDelegateAndroid::GetIdentifier() const {
+  return DATA_REDUCTION_PROMO_INFOBAR_DELEGATE_ANDROID;
+}
+
+base::string16 DataReductionPromoInfoBarDelegateAndroid::GetMessageText()
+    const {
+  return base::string16();
+}
+
+bool DataReductionPromoInfoBarDelegateAndroid::Accept() {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_DataReductionPromoInfoBarDelegate_accept(env);
+  return true;
+}
+
+// JNI for DataReductionPromoInfoBarDelegate.
+void Launch(JNIEnv* env,
+            const JavaParamRef<jclass>& clazz,
+            const JavaParamRef<jobject>& jweb_contents) {
+  DataReductionPromoInfoBarDelegateAndroid::Launch(env, clazz, jweb_contents);
+}