Android: Remove GetApplicationContext part 4

base/android/context_utils.cc

-// Copyright 2015 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 "base/android/context_utils.h"
-
-#include <jni.h>
-
-#include "base/android/scoped_java_ref.h"
-#include "base/lazy_instance.h"
-#include "jni/ContextUtils_jni.h"
-
-using base::android::JavaRef;
-
-namespace base {
-namespace android {
-
-namespace {
-
-// Leak the global app context, as it is used from a non-joinable worker thread
-// that may still be running at shutdown. There is no harm in doing this.
-base::LazyInstance<base::android::ScopedJavaGlobalRef<jobject>>::Leaky
-    g_application_context = LAZY_INSTANCE_INITIALIZER;
-
-void SetNativeApplicationContext(JNIEnv* env, const JavaRef<jobject>& context) {
-  if (env->IsSameObject(g_application_context.Get().obj(), context.obj())) {
-    // It's safe to set the context more than once if it's the same context.
-    return;
-  }
-  DCHECK(g_application_context.Get().is_null());
-  g_application_context.Get().Reset(context);
-}
-
-}  // namespace
-
-const JavaRef<jobject>& GetApplicationContext() {
-  DCHECK(!g_application_context.Get().is_null());
-  return g_application_context.Get();
-}
-
-static void InitNativeSideApplicationContext(
-    JNIEnv* env,
-    const JavaParamRef<jclass>& clazz,
-    const JavaParamRef<jobject>& context) {
-  SetNativeApplicationContext(env, context);
-}
-
-bool RegisterContextUtils(JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}
-
-}  // namespace android
-}  // namespace base