Refactor the view hierarchy of snackbars and infobars

chrome/android/java/src/org/chromium/chrome/browser/banners/SwipableOverlayView.java

Index: chrome/android/java/src/org/chromium/chrome/browser/banners/SwipableOverlayView.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/banners/SwipableOverlayView.java b/chrome/android/java/src/org/chromium/chrome/browser/banners/SwipableOverlayView.java
index efffabe0c4afac082c66b947902c963bf68e4894..babdce53210f925887ae7f713c5a3738d1fd3f46 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/banners/SwipableOverlayView.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/banners/SwipableOverlayView.java
@@ -18,7 +18,6 @@ import android.view.animation.DecelerateInterpolator;
 import android.view.animation.Interpolator;
 import android.widget.FrameLayout;
 
-import org.chromium.chrome.browser.tab.TabContentViewParent;
 import org.chromium.content.browser.ContentViewCore;
 import org.chromium.content_public.browser.GestureStateListener;
 
@@ -137,9 +136,10 @@ public abstract class SwipableOverlayView extends FrameLayout {
         return mContentViewCore;
     }
 
-    protected void addToParentView(TabContentViewParent parentView) {
+    protected void addToParentView(ViewGroup parentView) {
+        if (parentView == null) return;
         if (getParent() == null) {
-            parentView.addInfobarView(this, createLayoutParams());
+            parentView.addView(this, createLayoutParams());
 
             // Listen for the layout to know when to animate the View coming onto the screen.
             addOnLayoutChangeListener(mLayoutChangeListener);