[Offline Pages] Add a GCMAppHandler for offline page prefetch.

components/BUILD.gn

 # 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.
 
 import("//build/config/chrome_build.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//printing/features/features.gni")
 import("//rlz/features/features.gni")
 import("//testing/test.gni")
@@ skipping 177 matching lines @@
       "//components/error_page/renderer:unit_tests",
       "//components/favicon/content:unit_tests",
       "//components/gcm_driver/instance_id:unit_tests",
       "//components/guest_view/browser:unit_tests",
       "//components/history/content/browser:unit_tests",
       "//components/invalidation/impl:unit_tests",
       "//components/keyed_service/content:unit_tests",
       "//components/link_header_util:unit_tests",
       "//components/navigation_interception:unit_tests",
       "//components/network_hints/renderer:unit_tests",
-      "//components/offline_pages/content:unit_tests",
       "//components/offline_pages/content/background_loader:unit_tests",
       "//components/offline_pages/core:unit_tests",
       "//components/offline_pages/core/background:unit_tests",
       "//components/offline_pages/core/downloads:unit_tests",
       "//components/offline_pages/core/request_header:unit_tests",
       "//components/packed_ct_ev_whitelist:unit_tests",
       "//components/password_manager/content/browser:unit_tests",
       "//components/payments/content:unit_tests",
       "//components/payments/content/utility:unit_tests",
       "//components/policy/core/browser:unit_tests",
@@ skipping 297 matching lines @@
       "//testing/perf",
       "//url",
     ]
 
     if (!is_ios) {
       sources += [ "discardable_memory/common/discardable_shared_memory_heap_perftest.cc" ]
       deps += [ "//components/discardable_memory/common" ]
     }
   }
 }