Make GetApplicationContext return a JavaRef.

media/base/android/media_player_bridge.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 "media/base/android/media_player_bridge.h"
 
 #include <utility>
 
 #include "base/android/context_utils.h"
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
+#include "base/android/scoped_java_ref.h"
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/string_util.h"
 #include "jni/MediaPlayerBridge_jni.h"
 #include "media/base/android/media_common_android.h"
 #include "media/base/android/media_player_manager.h"
 #include "media/base/android/media_resource_getter.h"
 #include "media/base/android/media_url_interceptor.h"
 #include "media/base/timestamp_constants.h"
 
 using base::android::ConvertUTF8ToJavaString;
 using base::android::JavaParamRef;
+using base::android::JavaRef;
 using base::android::ScopedJavaLocalRef;
 
 namespace media {
 
 namespace {
 
 enum UMAExitStatus {
   UMA_EXIT_SUCCESS = 0,
   UMA_EXIT_ERROR,
   UMA_EXIT_STATUS_MAX = UMA_EXIT_ERROR,
@@ skipping 82 matching lines @@
 
 void MediaPlayerBridge::CreateJavaMediaPlayerBridge() {
   JNIEnv* env = base::android::AttachCurrentThread();
   CHECK(env);
 
   j_media_player_bridge_.Reset(Java_MediaPlayerBridge_create(
       env, reinterpret_cast<intptr_t>(this)));
 
   UpdateEffectiveVolume();
 
-  AttachListener(j_media_player_bridge_.obj());
+  AttachListener(j_media_player_bridge_);
 }
 
 void MediaPlayerBridge::SetDuration(base::TimeDelta duration) {
   duration_ = duration;
 }
 
 void MediaPlayerBridge::SetVideoSurface(gl::ScopedJavaSurface surface) {
   surface_ = std::move(surface);
 
   if (j_media_player_bridge_.is_null())
@@ skipping 34 matching lines @@
     if (!Java_MediaPlayerBridge_setDataSourceFromFd(
         env, j_media_player_bridge_.obj(), fd, offset, size)) {
       OnMediaError(MEDIA_ERROR_FORMAT);
       return;
     }
   } else {
     // Create a Java String for the URL.
     ScopedJavaLocalRef<jstring> j_url_string =
         ConvertUTF8ToJavaString(env, url);
 
-    jobject j_context = base::android::GetApplicationContext();
-    DCHECK(j_context);
+    const JavaRef<jobject>& j_context = base::android::GetApplicationContext();
 
     const std::string data_uri_prefix("data:");
     if (base::StartsWith(url, data_uri_prefix, base::CompareCase::SENSITIVE)) {
       if (!Java_MediaPlayerBridge_setDataUriDataSource(
           env, j_media_player_bridge_.obj(), j_context, j_url_string.obj())) {
         OnMediaError(MEDIA_ERROR_FORMAT);
       }
       return;
     }
 
@@ skipping 406 matching lines @@
 
 GURL MediaPlayerBridge::GetUrl() {
   return url_;
 }
 
 GURL MediaPlayerBridge::GetFirstPartyForCookies() {
   return first_party_for_cookies_;
 }
 
 }  // namespace media