[Android WebView] Provide more information about WebView for web debugging

android_webview/java/src/org/chromium/android_webview/AwContents.java

Index: android_webview/java/src/org/chromium/android_webview/AwContents.java
diff --git a/android_webview/java/src/org/chromium/android_webview/AwContents.java b/android_webview/java/src/org/chromium/android_webview/AwContents.java
index b82efc9709997c682fe83df8470d591b952f8c0a..7a19b58fe4e110bc439a38799cfcf1d9f54c8dad 100644
--- a/android_webview/java/src/org/chromium/android_webview/AwContents.java
+++ b/android_webview/java/src/org/chromium/android_webview/AwContents.java
@@ -1219,6 +1219,13 @@ public class AwContents {
         return mContainerView.performLongClick();
     }
 
+    @CalledByNative
+    private int[] getLocationOnScreen() {
+        int[] result = new int[2];
+        mContainerView.getLocationOnScreen(result);
+        return result;
+    }
+
     // -------------------------------------------------------------------------------------------
     // Helper methods
     // -------------------------------------------------------------------------------------------