Remove DocumentTab

chrome/android/java/src/org/chromium/chrome/browser/webapps/FullScreenActivityTab.java

Index: chrome/android/java/src/org/chromium/chrome/browser/webapps/FullScreenActivityTab.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/webapps/FullScreenActivityTab.java b/chrome/android/java/src/org/chromium/chrome/browser/webapps/FullScreenActivityTab.java
index f9194fe47c3dedcf7ded2b34a05e89872ea0eed4..256a8caf8470060728125933b4180e5d5ac4dceb 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/webapps/FullScreenActivityTab.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/webapps/FullScreenActivityTab.java
@@ -17,7 +17,6 @@ import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.tab.TabUma.TabCreationState;
 import org.chromium.chrome.browser.tabmodel.TabModel.TabLaunchType;
 import org.chromium.content_public.browser.LoadUrlParams;
-import org.chromium.content_public.browser.WebContents;
 import org.chromium.content_public.browser.WebContentsObserver;
 import org.chromium.ui.base.PageTransition;
 import org.chromium.ui.base.WindowAndroid;
@@ -73,8 +72,7 @@ public class FullScreenActivityTab extends Tab {
 
     private void initializeFullScreenActivityTab(TabContentManager tabContentManager,
             boolean unfreeze, TopControlsVisibilityDelegate topControlsVisibilityDelegate) {
-        initialize(null, tabContentManager, new FullScreenDelegateFactory(), false);
-        if (unfreeze) unfreezeContents();
+        initialize(null, tabContentManager, new FullScreenDelegateFactory(), false, unfreeze);
         mObserver = createWebContentsObserver();
         mTopControlsVisibilityDelegate = topControlsVisibilityDelegate;
     }
@@ -105,12 +103,6 @@ public class FullScreenActivityTab extends Tab {
         };
     }
 
-    @Override
-    protected void initContentViewCore(WebContents webContents) {
-        super.initContentViewCore(webContents);
-        getContentViewCore().setFullscreenRequiredForOrientationLock(false);
-    }
-
     /**
      * Loads the given {@code url}.
      * @param url URL to load.