Changed NavigationController access to through tab in Java code

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

Index: chrome/android/java/src/org/chromium/chrome/browser/SwipeRefreshHandler.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/SwipeRefreshHandler.java b/chrome/android/java/src/org/chromium/chrome/browser/SwipeRefreshHandler.java
index 45677771637fefaf3e6e47a06ad38f1d6d105bd1..400b4f657950d8bb0c9ce6e573c704d8254a2d4f 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/SwipeRefreshHandler.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/SwipeRefreshHandler.java
@@ -11,6 +11,7 @@ import org.chromium.base.TraceEvent;
 import org.chromium.base.annotations.JNINamespace;
 import org.chromium.base.metrics.RecordUserAction;
 import org.chromium.chrome.R;
+import org.chromium.chrome.browser.navigation.NavigationHandler;
 import org.chromium.content.browser.ContentViewCore;
 import org.chromium.content.browser.OverscrollRefreshHandler;
 import org.chromium.third_party.android.swiperefresh.SwipeRefreshLayout;
@@ -69,7 +70,8 @@ public class SwipeRefreshHandler implements OverscrollRefreshHandler {
      * the effect will be disabled.
      * @param contentViewCore The associated ContentViewCore instance.
      */
-    public void setContentViewCore(final ContentViewCore contentViewCore) {
+    public void setContentViewCore(final ContentViewCore contentViewCore,
+            final NavigationHandler navigationHandler) {
         if (mContentViewCore == contentViewCore) return;
 
         if (mContentViewCore != null) {
@@ -96,8 +98,7 @@ public class SwipeRefreshHandler implements OverscrollRefreshHandler {
                             contentViewCore.getContext().getResources().getString(resId);
                 }
                 mSwipeRefreshLayout.announceForAccessibility(mAccessibilityRefreshString);
-                contentViewCore.getWebContents().getNavigationController().reloadToRefreshContent(
-                        true);
+                navigationHandler.reloadToRefreshContent(true);
                 RecordUserAction.record("MobilePullGestureReload");
             }
         });