Adding a way to associate Android Activities with PlatformWindowAndroid

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

Index: ui/platform_window/android/java/src/org/chromium/ui/PlatformWindowAndroid.java
diff --git a/ui/platform_window/android/java/src/org/chromium/ui/PlatformWindowAndroid.java b/ui/platform_window/android/java/src/org/chromium/ui/PlatformWindowAndroid.java
index 9c77fce65121c5d8513a3da562444f5a40ff429f..e28c4864f1480278b6e4852756aa872979e3193c 100644
--- a/ui/platform_window/android/java/src/org/chromium/ui/PlatformWindowAndroid.java
+++ b/ui/platform_window/android/java/src/org/chromium/ui/PlatformWindowAndroid.java
@@ -31,10 +31,11 @@ public class PlatformWindowAndroid extends SurfaceView {
     @CalledByNative
     public static PlatformWindowAndroid createForActivity(
             Activity activity, long nativeViewport, long nativeImeController) {
-        PlatformWindowAndroid rv =
+        PlatformWindowAndroid pwa =
                 new PlatformWindowAndroid(activity, nativeViewport, nativeImeController);
-        activity.setContentView(rv);
-        return rv;
+        activity.setContentView(pwa);
+        nativeJavaPlatformWindowCreated(nativeViewport);

[sadrul, 2015/11/25 20:59:44]

createForActivity() is already called by native code. What's the point of
synchronously calling back into native code?

[mfomitchev, 2015/11/27 20:57:15]

Good point. Done.

+        return pwa;
     }
 
     public PlatformWindowAndroid(Context context, long nativeViewport, long nativeImeController) {
@@ -181,6 +182,8 @@ public class PlatformWindowAndroid extends SurfaceView {
 
     private static native void nativeDestroy(long nativePlatformWindowAndroid);
 
+    private static native void nativeJavaPlatformWindowCreated(long nativePlatformWindowAndroid);
+
     private static native void nativeSurfaceCreated(
             long nativePlatformWindowAndroid, Surface surface, float devicePixelRatio);