Mus experiment in content shell on Android.

ui/platform_window/android/platform_window_android.cc

Index: ui/platform_window/android/platform_window_android.cc
diff --git a/ui/platform_window/android/platform_window_android.cc b/ui/platform_window/android/platform_window_android.cc
index a4618aa8b3f97aabb2238f62e4e27cf17f817c6b..925a74983a2d656475960af6a1b7f91e2b357f8e 100644
--- a/ui/platform_window/android/platform_window_android.cc
+++ b/ui/platform_window/android/platform_window_android.cc
@@ -58,8 +58,7 @@ bool PlatformWindowAndroid::Register(JNIEnv* env) {
 PlatformWindowAndroid::PlatformWindowAndroid(PlatformWindowDelegate* delegate)
     : delegate_(delegate),
       window_(NULL),
-      id_generator_(0),
-      weak_factory_(this) {
+      id_generator_(0) {
 }
 
 PlatformWindowAndroid::~PlatformWindowAndroid() {
@@ -164,8 +163,8 @@ void PlatformWindowAndroid::Show() {
     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());
 }