Implement new compositor and ContentViewCore reparenting for VR Shell.

chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java b/chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java
index 430315ba541563110d5ccdc95960ea074ee32729..a0a63f5c752863501eb2cdb8dbf234156b2fcc2e 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java
@@ -956,7 +956,7 @@ public class ChromeTabbedActivity extends ChromeActivity implements OverviewMode
         mUndoBarPopupController = new UndoBarController(this, mTabModelSelectorImpl,
                 getSnackbarManager());
 
-        mVrShellDelegate = new VrShellDelegate(this, mContentContainer);
+        mVrShellDelegate = new VrShellDelegate(this);
     }
 
     @Override
@@ -1602,4 +1602,11 @@ public class ChromeTabbedActivity extends ChromeActivity implements OverviewMode
     public boolean isVrShellEnabled() {
         return mVrShellDelegate.isVrShellEnabled();
     }
+
+    // TODO(mthiesse): Toggle toolbar overlay, popups, etc.
+    public void setUIVisibilityForVR(int visibility) {
+        mControlContainer.setVisibility(visibility);
+        getCompositorViewHolder().getSurfaceView().setVisibility(visibility);
+        getCompositorViewHolder().setVisibility(visibility);
+    }
 }