Refactor ContentViewClient (3/6)

ui/android/view_android.cc

Index: ui/android/view_android.cc
diff --git a/ui/android/view_android.cc b/ui/android/view_android.cc
index 664758cd5304088709f1cd99bdb655bae764aadf..d51f8da62b06afaa9987814ffec14992b84d1136 100644
--- a/ui/android/view_android.cc
+++ b/ui/android/view_android.cc
@@ -179,4 +179,13 @@ bool ViewAndroid::StartDragAndDrop(const JavaRef<jstring>& jtext,
                                                    jimage);
 }
 
+void ViewAndroid::OnBackgroundColorChanged(SkColor color) {
+  ScopedJavaLocalRef<jobject> delegate(GetViewAndroidDelegate());
+  if (delegate.is_null())
+    return;
+  JNIEnv* env = base::android::AttachCurrentThread();
+  return Java_ViewAndroidDelegate_onBackgroundColorChanged(env, delegate,
+                                                           color);
+}
+
 }  // namespace ui