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

android_webview/native/aw_contents.cc

Index: android_webview/native/aw_contents.cc
diff --git a/android_webview/native/aw_contents.cc b/android_webview/native/aw_contents.cc
index f740291f25fc9e02c4696e9d8e8d5d359bd86b99..f4cc2e2b4e3ceb969645c8af7fa4fe18bb00655a 100644
--- a/android_webview/native/aw_contents.cc
+++ b/android_webview/native/aw_contents.cc
@@ -21,6 +21,7 @@
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
+#include "base/android/scoped_java_ref.h"
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/message_loop.h"
@@ -672,6 +673,18 @@ jint AwContents::ReleasePopupWebContents(JNIEnv* env, jobject obj) {
   return reinterpret_cast<jint>(pending_contents_.release());
 }
 
+gfx::Point AwContents::GetLocationOnScreen() {
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
+  if (obj.is_null()) return gfx::Point();
+  std::vector<int> location;
+  base::android::JavaIntArrayToIntVector(
+      env,
+      Java_AwContents_getLocationOnScreen(env, obj.obj()).obj(),
+      &location);
+  return gfx::Point(location[0], location[1]);
+}
+
 ScopedJavaLocalRef<jobject> AwContents::CapturePicture(JNIEnv* env,
                                                        jobject obj) {
   return browser_view_renderer_->CapturePicture();