[Offline Pages] Add basic evaluation tests and related changes.

chrome/android/java/src/org/chromium/chrome/browser/offlinepages/evaluation/OfflinePageEvaluationBridge.java

Index: chrome/android/java/src/org/chromium/chrome/browser/offlinepages/evaluation/OfflinePageEvaluationBridge.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/offlinepages/evaluation/OfflinePageEvaluationBridge.java b/chrome/android/java/src/org/chromium/chrome/browser/offlinepages/evaluation/OfflinePageEvaluationBridge.java
index d58497ae21dda1e04bc7d7375192170bf70c2b4e..8c7a0e1a30e61278d30a044bbe176bf63a9ad68e 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/offlinepages/evaluation/OfflinePageEvaluationBridge.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/offlinepages/evaluation/OfflinePageEvaluationBridge.java
@@ -53,9 +53,16 @@ public class OfflinePageEvaluationBridge {
         public void savePageRequestChanged(SavePageRequest request) {}
     }
 
-    public static OfflinePageEvaluationBridge getForProfile(Profile profile) {
+    /**
+     * Get the instance of the evaluation bridge.
+     * @param profile The profile used to get bridge.
+     * @param useEvaluationScheduler True if using the evaluation scheduler instead of the
+     * GCMNetworkManager one.
+     */
+    public static OfflinePageEvaluationBridge getForProfile(
+            Profile profile, boolean useEvaluationScheduler) {
         ThreadUtils.assertOnUiThread();
-        return nativeGetBridgeForProfile(profile);
+        return nativeGetBridgeForProfile(profile, useEvaluationScheduler);
     }
 
     private long mNativeOfflinePageEvaluationBridge;
@@ -117,9 +124,11 @@ public class OfflinePageEvaluationBridge {
     /**
      * Force request coordinator to process the requests in the queue.
      * @param callback The callback would be invoked after the operation completes.
+     * @return True if processing starts successfully and callback is expected to be called, false
+     * otherwise.
      */
-    public void pushRequestProcessing(final Callback<Boolean> callback) {
-        nativePushRequestProcessing(mNativeOfflinePageEvaluationBridge, callback);
+    public boolean pushRequestProcessing(final Callback<Boolean> callback) {
+        return nativePushRequestProcessing(mNativeOfflinePageEvaluationBridge, callback);
     }
 
     /**
@@ -184,12 +193,13 @@ public class OfflinePageEvaluationBridge {
                 creationTime, accessCount, lastAccessTimeMs);
     }
 
-    private static native OfflinePageEvaluationBridge nativeGetBridgeForProfile(Profile profile);
+    private static native OfflinePageEvaluationBridge nativeGetBridgeForProfile(
+            Profile profile, boolean useEvaluationScheduler);
 
     private native void nativeGetAllPages(long nativeOfflinePageEvaluationBridge,
             List<OfflinePageItem> offlinePages, final Callback<List<OfflinePageItem>> callback);
     private native void nativeSavePageLater(long nativeOfflinePageEvaluationBridge, String url,
             String clientNamespace, String clientId, boolean userRequested);
-    private native void nativePushRequestProcessing(
+    private native boolean nativePushRequestProcessing(
             long nativeOfflinePageEvaluationBridge, Callback<Boolean> callback);
 }