Remove now-unnecessary .obj() in Java method calls.

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 51 matching lines @@
       weak_factory_(this) {
 }
 
 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.obj());
+    Java_PlatformWindowAndroid_detach(env, scoped_obj);
   }
 }
 
 void PlatformWindowAndroid::Destroy(JNIEnv* env,
                                     const JavaParamRef<jobject>& obj) {
   delegate_->OnClosed();
 }
 
 void PlatformWindowAndroid::SurfaceCreated(
     JNIEnv* env,
@@ skipping 141 matching lines @@
 
 void PlatformWindowAndroid::ConfineCursorToBounds(const gfx::Rect& bounds) {
   NOTIMPLEMENTED();
 }
 
 PlatformImeController* PlatformWindowAndroid::GetPlatformImeController() {
   return &platform_ime_controller_;
 }
 
 }  // namespace ui