Revert of Hook up the Push API with GCM's new ability to own encryption keys.

components/gcm_driver.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.
 
 {
   'targets': [
     {
       # GN version: //components/gcm_driver:common
       'target_name': 'gcm_driver_common',
       'type': '<(component)',
@@ skipping 189 matching lines @@
         'gcm_driver_crypto_proto',
         '../base/base.gyp:base',
         '../components/components.gyp:leveldb_proto',
         '../crypto/crypto.gyp:crypto',
       ],
       'include_dirs': [
         '..',
       ],
       'sources': [
         # Note: file list duplicated in GN build.
-        'gcm_driver/crypto/gcm_encryption_provider.cc',
-        'gcm_driver/crypto/gcm_encryption_provider.h',
         'gcm_driver/crypto/gcm_key_store.cc',
         'gcm_driver/crypto/gcm_key_store.h',
         'gcm_driver/crypto/gcm_message_cryptographer.cc',
         'gcm_driver/crypto/gcm_message_cryptographer.h',
         'gcm_driver/crypto/gcm_message_cryptographer_nss.cc',
         'gcm_driver/crypto/gcm_message_cryptographer_openssl.cc',
       ],
       'conditions': [
         ['use_openssl==1', {
           'sources!': [
@@ skipping 51 matching lines @@
           'variables': {
             'jni_gen_package': 'components/gcm_driver',
           },
           'includes': [ '../build/jni_generator.gypi' ],
         },
       ],
      },
     ],
   ],
 }