Mus experiment in content shell on Android.

ui/platform_window/android/platform_window_android.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 "ui/platform_window/android/platform_window_android.h"
 
 #include <android/input.h>
 #include <android/native_window_jni.h>
 
 #include "base/android/context_utils.h"
@@ skipping 40 matching lines @@
 // PlatformWindowAndroid, public:
 
 // static
 bool PlatformWindowAndroid::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 PlatformWindowAndroid::PlatformWindowAndroid(PlatformWindowDelegate* delegate)
     : delegate_(delegate),
       window_(NULL),
-      id_generator_(0),
-      weak_factory_(this) {
+      id_generator_(0) {
 }
 
 PlatformWindowAndroid::~PlatformWindowAndroid() {
   if (window_)
     ReleaseWindow();
   JNIEnv* env = base::android::AttachCurrentThread();
   ScopedJavaLocalRef<jobject> scoped_obj =
       java_platform_window_android_.get(env);
   if (!scoped_obj.is_null()) {
     Java_PlatformWindowAndroid_detach(env, scoped_obj);
@@ skipping 84 matching lines @@
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // PlatformWindowAndroid, PlatformWindow implementation:
 
 void PlatformWindowAndroid::Show() {
   if (!java_platform_window_android_.is_empty())
     return;
   JNIEnv* env = base::android::AttachCurrentThread();
   java_platform_window_android_ = JavaObjectWeakGlobalRef(
-      env, Java_PlatformWindowAndroid_createForActivity(
-               env, base::android::GetApplicationContext(),
+      env, Java_PlatformWindowAndroid_createForCurrentActivity(
+               env,
                reinterpret_cast<jlong>(this),
                reinterpret_cast<jlong>(&platform_ime_controller_)).obj());
 }
 
 void PlatformWindowAndroid::Hide() {
   // Nothing to do. View is always visible.
 }
 
 void PlatformWindowAndroid::Close() {
   delegate_->OnCloseRequest();
@@ skipping 45 matching lines @@
 
 void PlatformWindowAndroid::ConfineCursorToBounds(const gfx::Rect& bounds) {
   NOTIMPLEMENTED();
 }
 
 PlatformImeController* PlatformWindowAndroid::GetPlatformImeController() {
   return &platform_ime_controller_;
 }
 
 }  // namespace ui