Hold a reference to any kind of context in WindowAndroid.

ui/android/resources/resource_manager_impl.cc

Index: ui/android/resources/resource_manager_impl.cc
diff --git a/ui/android/resources/resource_manager_impl.cc b/ui/android/resources/resource_manager_impl.cc
index 37f9aeaedb87a1fddb484ccbb20169d576d81d8b..f56532daca66a1e6cfa3aa7af822e97677e2bab9 100644
--- a/ui/android/resources/resource_manager_impl.cc
+++ b/ui/android/resources/resource_manager_impl.cc
@@ -9,6 +9,7 @@
 #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"
 
 namespace ui {
@@ -20,11 +21,21 @@ ResourceManagerImpl* ResourceManagerImpl::FromJavaObject(jobject jobj) {
                                         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(jobject context) : host_(nullptr) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  java_obj_.Reset(env, Java_ResourceManager_createForTests(
+                           env, context, reinterpret_cast<intptr_t>(this))
+                           .obj());
   DCHECK(!java_obj_.is_null());
 }