[Cronet] Enable persistence mode for Sdch

components/cronet/android/java/src/org/chromium/net/ChromiumUrlRequestContext.java

Index: components/cronet/android/java/src/org/chromium/net/ChromiumUrlRequestContext.java
diff --git a/components/cronet/android/java/src/org/chromium/net/ChromiumUrlRequestContext.java b/components/cronet/android/java/src/org/chromium/net/ChromiumUrlRequestContext.java
index 3a35828a50935fa55aab7431a5c9ac078e0c8d5f..3bdd19cff83e1f0de928e4cdf081cb5e661716ff 100644
--- a/components/cronet/android/java/src/org/chromium/net/ChromiumUrlRequestContext.java
+++ b/components/cronet/android/java/src/org/chromium/net/ChromiumUrlRequestContext.java
@@ -12,7 +12,6 @@ import android.util.Log;
 
 import org.chromium.base.CalledByNative;
 import org.chromium.base.JNINamespace;
-import org.chromium.base.VisibleForTesting;
 
 /**
  * Provides context for the native HTTP operations.
@@ -102,15 +101,6 @@ public class ChromiumUrlRequestContext {
         nativeStopNetLog(mChromiumUrlRequestContextAdapter);
     }
 
-    /**
-     * Returns the native URLRequestContextAdapter pointer.
-     * Currently this method is only used in testing.
-     */
-    @VisibleForTesting

[mef, 2015/05/28 15:18:55]

What does @VisibleForTesting annotation do? 
Should we add it to getUrlRequestContextAdapter()?

[xunjieli, 2015/05/28 15:50:07]

I am not exactly sure. but I used it to mark that this method's visibility is
relaxed because of testing purpose. 
getUrlRequestContextAdapter() is used in ChromiumUrlRequest, and its visibility
(protected keyword) isn't set due to testing, so I don't think we should add
@VisibleForTesting.

-    long getUrlRequestContextAdapterForTesting() {
-        return mChromiumUrlRequestContextAdapter;
-    }
-
     @CalledByNative
     private void initNetworkThread() {
         Thread.currentThread().setName("ChromiumNet");
@@ -123,7 +113,7 @@ public class ChromiumUrlRequestContext {
         super.finalize();
     }
 
-    protected long getChromiumUrlRequestContextAdapter() {
+    protected long getUrlRequestContextAdapter() {
         return mChromiumUrlRequestContextAdapter;
     }