Pull the Activity context from WindowAndroid if possible

ui/android/resources/resource_manager_impl.cc

 // Copyright 2014 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 "ui/android/resources/resource_manager_impl.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "base/trace_event/trace_event.h"
 #include "cc/resources/scoped_ui_resource.h"
 #include "jni/ResourceManager_jni.h"
 #include "ui/android/resources/ui_resource_provider.h"
+#include "ui/android/window_android.h"
 #include "ui/gfx/android/java_bitmap.h"
 #include "ui/gfx/geometry/rect.h"
 
 using base::android::JavaArrayOfIntArrayToIntVector;
 
 namespace ui {
 
 // static
 ResourceManagerImpl* ResourceManagerImpl::FromJavaObject(jobject jobj) {
   return reinterpret_cast<ResourceManagerImpl*>(
       Java_ResourceManager_getNativePtr(base::android::AttachCurrentThread(),
                                         jobj));
 }
 
-ResourceManagerImpl::ResourceManagerImpl() : host_(nullptr) {
+ResourceManagerImpl::ResourceManagerImpl(gfx::NativeWindow native_window)
+    : host_(nullptr) {
   JNIEnv* env = base::android::AttachCurrentThread();
   java_obj_.Reset(env, Java_ResourceManager_create(
-                           env, base::android::GetApplicationContext(),
-                           reinterpret_cast<intptr_t>(this)).obj());
+                           env, native_window->GetJavaObject().obj(),
+                           reinterpret_cast<intptr_t>(this))
+                           .obj());
   DCHECK(!java_obj_.is_null());
 }
 
 ResourceManagerImpl::~ResourceManagerImpl() {
   Java_ResourceManager_destroy(base::android::AttachCurrentThread(),
                                java_obj_.obj());
 }
 
 void ResourceManagerImpl::Init(cc::LayerTreeHost* host) {
   DCHECK(!host_);
@@ skipping 196 matching lines @@
   TRACE_EVENT2("ui",
                "ResourceManagerImpl::RequestCrushedSpriteResourceFromJava",
                "bitmap_res_id", bitmap_res_id,
                "metadata_res_id", metadata_res_id);
   Java_ResourceManager_crushedSpriteResourceRequested(
       base::android::AttachCurrentThread(), java_obj_.obj(),
       bitmap_res_id, metadata_res_id, reloading);
 }
 
 }  // namespace ui