Check fullscreen manager before setting control state

chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/LayoutManager.java

Index: chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/LayoutManager.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/LayoutManager.java b/chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/LayoutManager.java
index b826fde16bcb2e01ba252ed5d4cfce0fd72b9852..ff2d528c65d901851ea853512ae5931d43131f6b 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/LayoutManager.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/LayoutManager.java
@@ -256,8 +256,10 @@ public abstract class LayoutManager implements LayoutUpdateHost, LayoutProvider,
             TabContentManager tabContentManager, ResourceManager resourceManager,
             ChromeFullscreenManager fullscreenManager) {
         // Update the android browser controls state.
-        fullscreenManager.setHideBrowserControlsAndroidView(
-                mActiveLayout.forceHideBrowserControlsAndroidView());
+        if (fullscreenManager != null) {
+            fullscreenManager.setHideBrowserControlsAndroidView(
+                    mActiveLayout.forceHideBrowserControlsAndroidView());
+        }
 
         getViewportPixel(mCachedVisibleViewport);
         mHost.getWindowViewport(mCachedWindowViewport);