Refactor cronet library loader. Move java LibraryLoader into cronet.jar.

components/cronet.gypi

 # 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.
 
 {
   'conditions': [
     ['OS=="android"', {
       # TODO(mef): Consider moving all Cronet Android targets into separate
       # file. Also figure out what needs to be done for gn script.
       'targets': [
@@ skipping 42 matching lines @@
             '../base/base.gyp:base_i18n',
             '../third_party/icu/icu.gyp:icui18n',
             '../third_party/icu/icu.gyp:icuuc',
             '../url/url.gyp:url_lib',
             'cronet_jni_headers',
             'cronet_url_request_error_list',
             'cronet_url_request_priority_list',
             '../net/net.gyp:net',
           ],
           'sources': [
+            'cronet/android/cronet_jni.cc',
             'cronet/android/org_chromium_net_UrlRequest.cc',
             'cronet/android/org_chromium_net_UrlRequest.h',
             'cronet/android/org_chromium_net_UrlRequest_error_list.h',
             'cronet/android/org_chromium_net_UrlRequest_priority_list.h',
             'cronet/android/org_chromium_net_UrlRequestContext.cc',
+            'cronet/android/org_chromium_net_UrlRequestContext.h',
             'cronet/android/url_request_context_peer.cc',
             'cronet/android/url_request_context_peer.h',
             'cronet/android/url_request_peer.cc',
             'cronet/android/url_request_peer.h',
           ],
           'cflags': [
             # TODO(mef): Figure out a good way to get version from chrome_version_info_posix.h.
             '-DCHROMIUM_VERSION=\\"TBD\\"',
             '-DLOGGING=1',
             '-fdata-sections',
@@ skipping 104 matching lines @@
             'java_in_dir': 'cronet/android/sample/javatests',
             'resource_dir': 'cronet/android/sample/res',
             'is_test_apk': 1,
           },
           'includes': [ '../build/java_apk.gypi' ],
         },
       ],
     }],  # OS=="android"
   ],
 }