Fetch snippets from ChromeReader and show them on the NTP

chrome/browser/android/ntp_snippets_controller.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/android/ntp_snippets_controller.h"
+
+#include <jni.h>
+
+#include "base/android/jni_android.h"
+#include "base/android/scoped_java_ref.h"
+#include "chrome/browser/ntp_snippets/ntp_snippets_service_factory.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/profiles/profile_android.h"
+#include "jni/SnippetsController_jni.h"
+
+namespace ntp_snippets {
+static jlong Init(JNIEnv* env,
+                  const JavaParamRef<jobject>& obj,
+                  const JavaParamRef<jobject>& j_profile) {
+  NTPSnippetsController* snippets_bridge = new NTPSnippetsController(j_profile);
+  return reinterpret_cast<intptr_t>(snippets_bridge);
+}
+
+NTPSnippetsController::NTPSnippetsController(jobject j_profile) {
+  Profile* profile = ProfileAndroid::FromProfileAndroid(j_profile);
+  if (profile) {

[Bernhard Bauer, 2016/02/08 18:19:26]

Nit: no braces.

[May, 2016/02/09 17:38:53]

Done.

+    ntp_snippets_service_ = NTPSnippetsServiceFactory::GetForProfile(profile);
+  }
+}
+
+void NTPSnippetsController::Destroy(JNIEnv* env,
+                                    const JavaParamRef<jobject>& obj) {
+  delete this;
+}
+
+void NTPSnippetsController::FetchSnippets(JNIEnv* env,

[Bernhard Bauer, 2016/02/08 18:19:26]

You could make this a static method that just takes the profile (or even gets
the last used profile here in native code...), then you don't need to allocate
anything in this class.

[May, 2016/02/09 17:38:53]

Made it static. Later (depending on how we implement the scheduled downloads)
this might have to change, but for now we don't need any more than just a call
to fetch snippets directly.

+                                          const JavaParamRef<jobject>& obj,
+                                          jboolean overwrite) {
+  ntp_snippets_service_->FetchSnippets(overwrite);
+}
+
+// static
+bool RegisterNTPSnippetsController(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+}  // namespace ntp_snippets