Public glue layer plumbing for View#startActivityForResult

android_webview/java/src/org/chromium/android_webview/FullScreenView.java

Index: android_webview/java/src/org/chromium/android_webview/FullScreenView.java
diff --git a/android_webview/java/src/org/chromium/android_webview/FullScreenView.java b/android_webview/java/src/org/chromium/android_webview/FullScreenView.java
index 1eb96a4eda3dd97c99e511031b4607bcfac1b2dd..b25347e99f7d2941153d93348b4db0296bc0bd82 100644
--- a/android_webview/java/src/org/chromium/android_webview/FullScreenView.java
+++ b/android_webview/java/src/org/chromium/android_webview/FullScreenView.java
@@ -5,6 +5,7 @@
 package org.chromium.android_webview;
 
 import android.content.Context;
+import android.content.Intent;
 import android.content.res.Configuration;
 import android.graphics.Canvas;
 import android.graphics.Paint;
@@ -230,6 +231,13 @@ public class FullScreenView extends FrameLayout {
         }
 
         @Override
+        public void super_startActivityForResult(Intent intent, int requestCode) {

[sgurun-gerrit only, 2015/10/16 00:06:53]

I think you should call FullScreenView.super.startActivityForResult() here. 

[hush (inactive), 2015/10/20 23:16:10]

We discussed this bit offline. Just recap here:
There is no public method FrameLayout#startActivityForResult. I have to get hold
of it via reflection. And I can't get rid of the reflection even after N
releases.

What's more I have to implement onActivityResult for FrameLayout here, which is
extra duplicate code with AwContents.

That's why I am just using the initial delegate's
super_startActivityForResult(that is super_startActivityForResult on
WebViewChroium). In this way, WebViewChromium alone is responsible for sending
intents and receiving results. And it is also the only place with reflection
hack, which will be removed when N is released.

+            // Intentional no-op. startActivityForResult will only go through
+            // the initial InternalAccessDelegate, which fires the intent
+            // through WebView.
+        }
+
+        @Override
         public boolean awakenScrollBars() {
             return FullScreenView.this.awakenScrollBars(0);
         }