Android: Remove GetApplicationContext part 4

ui/platform_window/android/java/src/org/chromium/ui/PlatformWindowAndroid.java

 // Copyright 2013 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.
 
 package org.chromium.ui;
 
 import android.app.Activity;
-import android.content.Context;
 import android.view.KeyEvent;
 import android.view.MotionEvent;
 import android.view.Surface;
 import android.view.SurfaceHolder;
 import android.view.SurfaceView;
 import android.view.View;
 import android.view.inputmethod.EditorInfo;
 import android.view.inputmethod.InputConnection;
 
+import org.chromium.base.ContextUtils;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
 
 /**
  * Exposes SurfaceView to native code.
  */
 @JNINamespace("ui")
 public class PlatformWindowAndroid extends SurfaceView {
 
     private long mNativeMojoViewport;
     private final SurfaceHolder.Callback mSurfaceCallback;
     private final PlatformImeControllerAndroid mImeController;
 
     @CalledByNative
     public static PlatformWindowAndroid createForActivity(
-            Activity activity, long nativeViewport, long nativeImeController) {
-        PlatformWindowAndroid rv =
-                new PlatformWindowAndroid(activity, nativeViewport, nativeImeController);
-        activity.setContentView(rv);
+            long nativeViewport, long nativeImeController) {
+        PlatformWindowAndroid rv = new PlatformWindowAndroid(nativeViewport, nativeImeController);
+        ((Activity) ContextUtils.getApplicationContext()).setContentView(rv);

[agrieve, 2017/05/04 15:55:50]

You're casting the application context to an Activity. I don't think that's
going to work.

[Peter Wen, 2017/05/04 17:39:26]

Maybe this is actually never called, but native does actually call
Java_PlatformWindowAndroid_createForActivity with the application context as an
activity.

[agrieve, 2017/05/04 18:24:51]

aha. Did some codesearching and my best guess is that this is part of the
never-finished Android aura port. Likely never called :/. 

         return rv;
     }
 
-    public PlatformWindowAndroid(Context context, long nativeViewport, long nativeImeController) {
-        super(context);
+    private PlatformWindowAndroid(long nativeViewport, long nativeImeController) {
+        super(ContextUtils.getApplicationContext());
 
         setFocusable(true);
         setFocusableInTouchMode(true);
 
         mNativeMojoViewport = nativeViewport;
         assert mNativeMojoViewport != 0;
 
-        final float density = context.getResources().getDisplayMetrics().density;
+        final float density =
+                ContextUtils.getApplicationContext().getResources().getDisplayMetrics().density;
 
         mSurfaceCallback = new SurfaceHolder.Callback() {
             @Override
             public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
                 assert mNativeMojoViewport != 0;
                 nativeSurfaceSetSize(mNativeMojoViewport, width, height, density);
             }
 
             @Override
             public void surfaceCreated(SurfaceHolder holder) {
@@ skipping 138 matching lines @@
     private static native void nativeSurfaceSetSize(
             long nativePlatformWindowAndroid, int width, int height, float density);
 
     private static native boolean nativeTouchEvent(long nativePlatformWindowAndroid, long timeMs,
             int maskedAction, int pointerId, float x, float y, float pressure, float touchMajor,
             float touchMinor, float orientation, float hWheel, float vWheel);
 
     private static native boolean nativeKeyEvent(
             long nativePlatformWindowAndroid, boolean pressed, int keyCode, int unicodeCharacter);
 }