Add DataReductionProxy IPC to determine if the Data Reduction Proxy was used.

components/data_reduction_proxy.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/data_reduction_proxy/content
       'target_name': 'data_reduction_proxy_content',
@@ skipping 15 matching lines @@
         'data_reduction_proxy/content/browser/content_data_reduction_proxy_debug_ui_service.h',
         'data_reduction_proxy/content/browser/data_reduction_proxy_debug_blocking_page.cc',
         'data_reduction_proxy/content/browser/data_reduction_proxy_debug_blocking_page.h',
         'data_reduction_proxy/content/browser/data_reduction_proxy_debug_resource_throttle.cc',
         'data_reduction_proxy/content/browser/data_reduction_proxy_debug_resource_throttle.h',
         'data_reduction_proxy/content/browser/data_reduction_proxy_debug_ui_manager.cc',
         'data_reduction_proxy/content/browser/data_reduction_proxy_debug_ui_manager.h',
       ],
     },
     {
+      # GN version: //components/data_reduction_proxy/content/common
+      'target_name': 'data_reduction_proxy_content_common',
+      'type': 'static_library',
+      'dependencies': [
+        '../content/content.gyp:content_common',
+        '../ipc/ipc.gyp:ipc',
+      ],
+      'include_dirs': [
+        '..',
+      ],
+      'sources': [
+        'data_reduction_proxy/content/common/data_reduction_proxy_messages.cc',
+        'data_reduction_proxy/content/common/data_reduction_proxy_messages.h',
+      ],
+    },
+    {
+      # GN version: //components/data_reduction_proxy/content/browser
+      'target_name': 'data_reduction_proxy_content_browser',
+      'type': 'static_library',
+      'dependencies': [
+        '../content/content.gyp:content_common',
+        '../ipc/ipc.gyp:ipc',
+        'data_reduction_proxy_content_common',
+      ],
+      'include_dirs': [
+        '..',
+      ],
+      'sources': [
+        'data_reduction_proxy/content/browser/data_reduction_proxy_message_filter.cc',
+        'data_reduction_proxy/content/browser/data_reduction_proxy_message_filter.h',
+      ],
+    },
+    {
       # GN version: //components/data_reduction_proxy/core/browser
       'target_name': 'data_reduction_proxy_core_browser',
       'type': 'static_library',
       'conditions': [
         ['OS != "android" and OS != "ios"', {
           'dependencies' : [
             '../google_apis/google_apis.gyp:google_apis',
           ]
         }],
       ],
@@ skipping 128 matching lines @@
             '-e', 'VERSION_FULL="<(version_full)"',
             'data_reduction_proxy/core/common/version.h.in',
             '<@(_outputs)',
           ],
           'includes': [
             '../build/util/version.gypi',
           ],
         },
       ],
     },
-
   ],
 }