Fix a bug that some NativePage might overlap tabstrip on tablets

chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java

Index: chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java b/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
index 6cb24acce5fe216154c2193b521fc69d5e54f24c..d472824e5c333fb9fc7901a4f1a8664cf31335c9 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
@@ -203,13 +203,13 @@ public class Tab implements ViewGroup.OnHierarchyChangeListener,
     private TabContentViewParent mContentViewParent;
 
     /** A list of Tab observers.  These are used to broadcast Tab events to listeners. */
-    private final ObserverList<TabObserver> mObservers = new ObserverList<TabObserver>();
+    private final ObserverList<TabObserver> mObservers = new ObserverList<>();
 
     /**
      * A list of {@link ContentViewCore} overlay objects that are managed by external components but
      * need to be sized and rendered along side this {@link Tab}s content.
      */
-    private final List<ContentViewCore> mOverlayContentViewCores = new ArrayList<ContentViewCore>();
+    private final List<ContentViewCore> mOverlayContentViewCores = new ArrayList<>();
 
     // Content layer Observers and Delegates
     private ContentViewClient mContentViewClient;
@@ -873,12 +873,11 @@ public class Tab implements ViewGroup.OnHierarchyChangeListener,
     }
 
     /**
-     * @return The {@link View} displaying the current page in the tab. This might be a
-     *         native view or a placeholder view for content rendered by the compositor.
-     *         This can be {@code null}, if the tab is frozen or being initialized or destroyed.
+     * @return The {@link View} displaying the current page in the tab. This can be {@code null}, if
+     *         the tab is frozen or being initialized or destroyed.
      */
     public View getView() {
-        return mNativePage != null ? mNativePage.getView() : mContentViewParent;
+        return mContentViewParent;
     }
 
     /**