Initial implementation of Cronet Async API.

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

 // 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.
 
 package org.chromium.net;
 
 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
 
 /**
  * A config for HttpUrlRequestFactory, which allows runtime configuration of
  * HttpUrlRequestFactory.
  */
 public class HttpUrlRequestFactoryConfig {
 
     /**
      * Default config enables SPDY, QUIC, in memory http cache.
      */
     public HttpUrlRequestFactoryConfig() {
         enableLegacyMode(false);
         enableQUIC(false);
         enableSPDY(true);
         enableHttpCache(HttpCache.IN_MEMORY, 100 * 1024);
     }
 
     /**
-     * Override the name of the native library backing cronet.
-     */
-    public HttpUrlRequestFactoryConfig setLibraryName(String libName) {
-        return putString(UrlRequestContextConfig.NATIVE_LIBRARY_NAME, libName);
-    }
-
-    /**
      * Create config from json serialized using @toString.
      */
     public HttpUrlRequestFactoryConfig(String json) throws JSONException {
         mConfig = new JSONObject(json);
     }
 
     /**
      * Boolean, use HttpUrlRequest-based implementation if true. All other
      * keys are not applicable.
      */
     public HttpUrlRequestFactoryConfig enableLegacyMode(boolean value) {
         return putBoolean(UrlRequestContextConfig.ENABLE_LEGACY_MODE, value);
     }
 
     boolean legacyMode() {
         return mConfig.optBoolean(UrlRequestContextConfig.ENABLE_LEGACY_MODE);
     }
 
+   /**
+     * Override the user-agent header for all requests.
+     */
+    public HttpUrlRequestFactoryConfig setUserAgent(String userAgent) {
+        return putString(UrlRequestContextConfig.USER_AGENT, userAgent);
+    }
+
+    String userAgent() {
+        return mConfig.optString(UrlRequestContextConfig.USER_AGENT);
+    }
+
+    /**
+     * Override the name of the native library backing cronet.
+     */
+    public HttpUrlRequestFactoryConfig setLibraryName(String libName) {
+        return putString(UrlRequestContextConfig.NATIVE_LIBRARY_NAME, libName);
+    }
+
     /**
      * Boolean, enable QUIC if true.
      */
     public HttpUrlRequestFactoryConfig enableQUIC(boolean value) {
         return putBoolean(UrlRequestContextConfig.ENABLE_QUIC, value);
     }
 
     /**
      * Boolean, enable SPDY if true.
      */
@@ skipping 55 matching lines @@
                 quicHints = new JSONArray();
                 mConfig.put(UrlRequestContextConfig.QUIC_HINTS, quicHints);
             }
 
             JSONObject hint = new JSONObject();
             hint.put(UrlRequestContextConfig.QUIC_HINT_HOST, host);
             hint.put(UrlRequestContextConfig.QUIC_HINT_PORT, port);
             hint.put(UrlRequestContextConfig.QUIC_HINT_ALT_PORT, alternatePort);
             quicHints.put(hint);
         } catch (JSONException e) {
-            ;
+            // Ignore the exception.
         }
         return this;
     }
 
     /**
      * Get JSON string representation of the config.
      */
     public String toString() {
         return mConfig.toString();
     }
 
     /**
      * Sets a boolean value in the config. Returns a reference to the same
      * config object, so you can chain put calls together.
      */
     private HttpUrlRequestFactoryConfig putBoolean(String key, boolean value) {
         try {
             mConfig.put(key, value);
         } catch (JSONException e) {
-            ;
+            // Ignore the exception.
         }
         return this;
     }
 
     /**
      * Sets a long value in the config. Returns a reference to the same
      * config object, so you can chain put calls together.
      */
     private HttpUrlRequestFactoryConfig putLong(String key, long value)  {
         try {
             mConfig.put(key, value);
         } catch (JSONException e) {
-            ;
+            // Ignore the exception.
         }
         return this;
     }
 
     /**
      * Sets a string value in the config. Returns a reference to the same
      * config object, so you can chain put calls together.
      */
     private HttpUrlRequestFactoryConfig putString(String key, String value) {
         try {
             mConfig.put(key, value);
         } catch (JSONException e) {
-            ;
+            // Ignore the exception.
         }
         return this;
     }
 
     private JSONObject mConfig = new JSONObject();
 }