Make WebView work for external displays (over Presentations).

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 "base/android/jni_string.h"
 #include "base/trace_event/trace_event.h"
 #include "jni/ResourceManager_jni.h"
 #include "ui/android/resources/ui_resource_android.h"
 #include "ui/android/resources/ui_resource_provider.h"
 #include "ui/gfx/android/java_bitmap.h"
 
 namespace ui {
 
 // static
 ResourceManagerImpl* ResourceManagerImpl::FromJavaObject(jobject jobj) {
   return reinterpret_cast<ResourceManagerImpl*>(
       Java_ResourceManager_getNativePtr(base::android::AttachCurrentThread(),
                                         jobj));
 }
 
 ResourceManagerImpl::ResourceManagerImpl(
-    ui::UIResourceProvider* ui_resource_provider)
+    ui::UIResourceProvider* ui_resource_provider,
+    jobject context)
     : ui_resource_provider_(ui_resource_provider) {
   JNIEnv* env = base::android::AttachCurrentThread();
-  java_obj_.Reset(env, Java_ResourceManager_create(
-                           env, base::android::GetApplicationContext(),
-                           reinterpret_cast<intptr_t>(this)).obj());
+  java_obj_.Reset(
+      env, Java_ResourceManager_create(env, context,
+                                       reinterpret_cast<intptr_t>(this)).obj());
   DCHECK(!java_obj_.is_null());
 }
 
 ResourceManagerImpl::~ResourceManagerImpl() {
   Java_ResourceManager_destroy(base::android::AttachCurrentThread(),
                                java_obj_.obj());
 }
 
 base::android::ScopedJavaLocalRef<jobject>
 ResourceManagerImpl::GetJavaObject() {
@@ skipping 83 matching lines @@
 void ResourceManagerImpl::RequestResourceFromJava(AndroidResourceType res_type,
                                                   int res_id) {
   TRACE_EVENT2("ui", "ResourceManagerImpl::RequestResourceFromJava",
                "resource_type", res_type,
                "resource_id", res_id);
   Java_ResourceManager_resourceRequested(base::android::AttachCurrentThread(),
                                          java_obj_.obj(), res_type, res_id);
 }
 
 }  // namespace ui