Pass rendering state on swapping in a prerendered page.

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

Index: chrome/android/java/src/org/chromium/chrome/browser/TabObserver.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/TabObserver.java b/chrome/android/java/src/org/chromium/chrome/browser/TabObserver.java
index 059b897ec1267260c1f531588280684975f3cbcc..189c9d7061029859d355ee425af58b03bfabc8b3 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/TabObserver.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/TabObserver.java
@@ -46,8 +46,11 @@ public interface TabObserver {
     /**
      * Called when the WebContents of a {@link TabBase} have been swapped.
      * @param tab The notifying {@link TabBase}.
+     * @param didStartLoad Whether WebContentsObserver::DidStartProvisionalLoadForFrame() has
+     *     already been called.
+     * @param didFinishLoad Whether WebContentsObserver::DidFinishLoad() has already been called.
      */
-    void onWebContentsSwapped(TabBase tab);
+    void onWebContentsSwapped(TabBase tab, boolean didStartLoad, boolean didFinishLoad);
 
     /**
      * Called when a context menu is shown for a {@link ContentView} owned by a {@link TabBase}.