[Cronet] Allow UrlRequest bypass cache

components/cronet/android/cronet_url_request.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/cronet/android/cronet_url_request.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/logging.h"
@@ skipping 190 matching lines @@
   DCHECK(jurl_request_adapter);
   CronetURLRequestAdapter* request_adapter =
       reinterpret_cast<CronetURLRequestAdapter*>(jurl_request_adapter);
   DCHECK(!request_adapter->IsOnNetworkThread());
   request_adapter->PostTaskToNetworkThread(
       FROM_HERE,
       base::Bind(&CronetURLRequestAdapter::FollowDeferredRedirect,
                  base::Unretained(request_adapter)));
 }
 
+static void DisableCache(JNIEnv* env,
+                         jobject jurl_request,
+                         jlong jurl_request_adapter) {
+  DCHECK(jurl_request_adapter);
+  CronetURLRequestAdapter* request_adapter =
+      reinterpret_cast<CronetURLRequestAdapter*>(jurl_request_adapter);
+  DCHECK(!request_adapter->IsOnNetworkThread());
+  request_adapter->DisableCache();
+}
+
 static void PopulateResponseHeaders(JNIEnv* env,
                                     jobject jurl_request,
                                     jlong jurl_request_adapter,
                                     jobject jheaders_list) {
   DCHECK(jurl_request_adapter);
   CronetURLRequestAdapter* request_adapter =
       reinterpret_cast<CronetURLRequestAdapter*>(jurl_request_adapter);
   DCHECK(request_adapter->IsOnNetworkThread());
 
   const net::HttpResponseHeaders* headers =
@@ skipping 51 matching lines @@
   DCHECK(jurl_request_adapter);
   CronetURLRequestAdapter* request_adapter =
       reinterpret_cast<CronetURLRequestAdapter*>(jurl_request_adapter);
   DCHECK(request_adapter->IsOnNetworkThread());
   const net::HttpResponseHeaders* headers =
       request_adapter->GetResponseHeaders();
   return ConvertUTF8ToJavaString(env, headers->GetStatusText()).Release();
 }
 
 }  // namespace cronet