Add a integration test suite for BlobChannel.

blimp/common/BUILD.gn

 # Copyright 2015 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("//testing/test.gni")
 
 component("common") {
   output_name = "blimp_common"
   sources = [
     "blimp_common_export.h",
@@ skipping 28 matching lines @@
     "//ui/gl",
   ]
 }
 
 source_set("test_support") {
   testonly = true
 
   sources = [
     "blob_cache/mock_blob_cache.cc",
     "blob_cache/mock_blob_cache.h",
+    "blob_cache/test_util.cc",
+    "blob_cache/test_util.h",
   ]
 
   deps = [
     ":common",
     "//blimp/common/proto",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }
 
@@ skipping 10 matching lines @@
   deps = [
     ":common",
     "//base",
     "//blimp/common/proto",
     "//blimp/net:test_support",
     "//crypto",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }