Move Tab's top controls visibility to a delegate

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

Index: chrome/android/java/src/org/chromium/chrome/browser/webapps/FullScreenDelegateFactory.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/webapps/FullScreenDelegateFactory.java b/chrome/android/java/src/org/chromium/chrome/browser/webapps/FullScreenDelegateFactory.java
index b112522a2016530bcdf192e5d0b5ccb390df6552..fa32d7338e1f82626e144d0a9651cbd20ebeaad9 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/webapps/FullScreenDelegateFactory.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/webapps/FullScreenDelegateFactory.java
@@ -14,6 +14,7 @@ import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.tab.TabContextMenuItemDelegate;
 import org.chromium.chrome.browser.tab.TabDelegateFactory;
 import org.chromium.chrome.browser.tab.TabWebContentsDelegateAndroid;
+import org.chromium.chrome.browser.tab.TopControlsVisibilityDelegate;
 
 /**
  * A {@link TabDelegateFactory} class to be used in all {@link Tab} instances owned
@@ -61,4 +62,14 @@ public class FullScreenDelegateFactory extends TabDelegateFactory {
                 new TabContextMenuItemDelegate(tab, activity),
                 ChromeContextMenuPopulator.FULLSCREEN_TAB_MODE);
     }
+
+    @Override
+    public TopControlsVisibilityDelegate createTopControlsVisibilityDelegate(Tab tab) {
+        return new TopControlsVisibilityDelegate(tab) {
+            @Override
+            public boolean isHidingTopControlsEnabled() {
+                return !isShowingTopControlsEnabled();
+            }
+        };
+    }
 }