[Cronet] Allow UrlRequest bypass cache

components/cronet/android/java/src/org/chromium/net/urlconnection/CronetHttpURLConnection.java

Index: components/cronet/android/java/src/org/chromium/net/urlconnection/CronetHttpURLConnection.java
diff --git a/components/cronet/android/java/src/org/chromium/net/urlconnection/CronetHttpURLConnection.java b/components/cronet/android/java/src/org/chromium/net/urlconnection/CronetHttpURLConnection.java
index 9c308ae1f5fba209df0e7c83a9db181bbcb233e6..aff517972cd0634580f9bd8a9346790609f0d1cf 100644
--- a/components/cronet/android/java/src/org/chromium/net/urlconnection/CronetHttpURLConnection.java
+++ b/components/cronet/android/java/src/org/chromium/net/urlconnection/CronetHttpURLConnection.java
@@ -71,6 +71,9 @@ public class CronetHttpURLConnection extends HttpURLConnection {
         for (Pair<String, String> requestHeader : mRequestHeaders) {
             mRequest.addHeader(requestHeader.first, requestHeader.second);
         }
+        if (!getUseCaches()) {

[mmenke, 2015/01/22 16:21:20]

Can you add a test for this, ideally one that compares us with the platform
implementation.

[xunjieli, 2015/01/26 21:36:09]

Partially done. It looks like the default implementation does not cache the
result. See my test in CronetHttpURLConnectTest for more details.

+            mRequest.bypassCache();
+        }
         mRequest.start();
         // Blocks until onResponseStarted or onFailed is called.
         mMessageLoop.loop();