Make URLRequestContextAdapter initialization asynchronous

components/cronet/android/java/src/org/chromium/net/ChromiumUrlRequestContext.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 android.content.Context;
-import android.os.ConditionVariable;
 import android.os.Process;
 import android.util.Log;
 
 import org.chromium.base.CalledByNative;
 import org.chromium.base.JNINamespace;
 
 /**
  * Provides context for the native HTTP operations.
  */
 @JNINamespace("cronet")
 public class ChromiumUrlRequestContext {
     private static final int LOG_NONE = 3;  // LOG(FATAL), no VLOG.
     private static final int LOG_DEBUG = -1;  // LOG(FATAL...INFO), VLOG(1)
     private static final int LOG_VERBOSE = -2;  // LOG(FATAL...INFO), VLOG(2)
     static final String LOG_TAG = "ChromiumNetwork";
 
     /**
      * Native adapter object, owned by ChromiumUrlRequestContext.
      */
     private long mChromiumUrlRequestContextAdapter;
 
-    private final ConditionVariable mStarted = new ConditionVariable();
-
     /**
      * Constructor.
      *
      */
     protected ChromiumUrlRequestContext(Context context, String userAgent,
             String config) {
         mChromiumUrlRequestContextAdapter = nativeCreateRequestContextAdapter(
                 context, userAgent, getLoggingLevel(), config);
-        if (mChromiumUrlRequestContextAdapter == 0)
+        if (mChromiumUrlRequestContextAdapter == 0) {
             throw new NullPointerException("Context Adapter creation failed");
-
-        // TODO(mef): Revisit the need of block here.
-        mStarted.block(2000);
+        }
     }
 
     /**
      * Returns the version of this network stack formatted as N.N.N.N/X where
      * N.N.N.N is the version of Chromium and X is the revision number.
      */
     public static String getVersion() {
         return Version.getVersion();
     }
 
@@ skipping 28 matching lines @@
      * not in progress this call is ignored.
      */
     public void stopNetLog() {
         nativeStopNetLog(mChromiumUrlRequestContextAdapter);
     }
 
     @CalledByNative
     private void initNetworkThread() {
         Thread.currentThread().setName("ChromiumNet");
         Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
-        mStarted.open();
     }
 
     @Override
     protected void finalize() throws Throwable {
         nativeReleaseRequestContextAdapter(mChromiumUrlRequestContextAdapter);
         super.finalize();
     }
 
     protected long getChromiumUrlRequestContextAdapter() {
         return mChromiumUrlRequestContextAdapter;
@@ skipping 25 matching lines @@
 
     private native void nativeInitializeStatistics();
 
     private native String nativeGetStatisticsJSON(String filter);
 
     private native void nativeStartNetLogToFile(
             long chromiumUrlRequestContextAdapter, String fileName);
 
     private native void nativeStopNetLog(long chromiumUrlRequestContextAdapter);
 }