[Android] Move LoadUrl from Tab upstream.

chrome/android/java/TabLoadStatus.template

Index: chrome/android/java/TabLoadStatus.template
diff --git a/chrome/android/java/ActivityTypeIds.template b/chrome/android/java/TabLoadStatus.template
similarity index 50%
copy from chrome/android/java/ActivityTypeIds.template
copy to chrome/android/java/TabLoadStatus.template
index 4f64e8bf8e8a5ba8d4e5e6530a4fdc1d8cf94432..e0044896c998c30947c3aca20c285d1a9e627f2b 100644
--- a/chrome/android/java/ActivityTypeIds.template
+++ b/chrome/android/java/TabLoadStatus.template
@@ -4,8 +4,8 @@
 
 package org.chromium.chrome.browser;
 
-public class ActivityTypeIds {
-#define DEFINE_ACTIVITY_ID(id,value) public static final int ACTIVITY_##id = value;
-#include "chrome/browser/android/activity_type_id_list.h"
-#undef DEFINE_ACTIVITY_ID
+public class TabLoadStatus {
+#define DEFINE_TAB_LOAD_STATUS(name,value) \
+  public static final int name = value;
+#include "chrome/browser/android/tab_load_status.h"
 }