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

chrome/browser/offline_pages/prefetch/suggested_articles_observer_unittest.cc

 // Copyright 2017 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.
 
-#include "components/offline_pages/content/suggested_articles_observer.h"
+#include "chrome/browser/offline_pages/prefetch/suggested_articles_observer.h"
 
 #include "base/run_loop.h"
 #include "base/test/test_simple_task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
+#include "chrome/test/base/testing_profile.h"
 #include "components/offline_pages/core/client_namespace_constants.h"
 #include "components/offline_pages/core/stub_offline_page_model.h"
-#include "content/public/test/test_browser_context.h"
+#include "content/public/test/test_browser_thread_bundle.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
 using ntp_snippets::Category;
 using ntp_snippets::ContentSuggestion;
 
+namespace gcm {
+class GCMDriver;
+}
+
 namespace offline_pages {
 
 namespace {
 
 ContentSuggestion ContentSuggestionFromTestURL(const GURL& test_url) {
   auto category =
       Category::FromKnownCategory(ntp_snippets::KnownCategories::ARTICLES);
   return ContentSuggestion(category, test_url.spec(), test_url);
 }
 
@@ skipping 58 matching lines @@
 };
 
 }  // namespace
 
 class OfflinePageSuggestedArticlesObserverTest : public testing::Test {
  public:
   OfflinePageSuggestedArticlesObserverTest() = default;
 
   void SetUp() override {
     observer_ =
-        base::MakeUnique<SuggestedArticlesObserver>(&context_, MakeDelegate());
+        base::MakeUnique<SuggestedArticlesObserver>(&profile_, MakeDelegate());
   }
 
   virtual std::unique_ptr<SuggestedArticlesObserver::Delegate> MakeDelegate() {
     auto delegate_ptr = base::MakeUnique<TestDelegate>();
     test_delegate_ = delegate_ptr.get();
     return std::move(delegate_ptr);
   }
 
   SuggestedArticlesObserver* observer() { return observer_.get(); }
 
   TestDelegate* test_delegate() { return test_delegate_; }
   TestingPrefetchService* test_prefetch_service() {
     return &(test_delegate()->prefetch_service);
   }
 
  protected:
   Category category =
       Category::FromKnownCategory(ntp_snippets::KnownCategories::ARTICLES);
-  content::TestBrowserContext context_;
+
+  content::TestBrowserThreadBundle thread_bundle_;
+  TestingProfile profile_;
 
  private:
   std::unique_ptr<SuggestedArticlesObserver> observer_;
   TestDelegate* test_delegate_;
 };
 
 TEST_F(OfflinePageSuggestedArticlesObserverTest,
        CallsDelegateOnNewSuggestions) {
   // We should not do anything if the category is not loaded.
   observer()->OnNewSuggestions(category);
@@ skipping 62 matching lines @@
 
   observer()->OnSuggestionInvalidated(
       ntp_snippets::ContentSuggestion::ID(category, test_url_1.spec()));
 
   EXPECT_EQ(1, test_prefetch_service()->remove_by_client_id_count);
   EXPECT_EQ(ClientId(kSuggestedArticlesNamespace, test_url_1.spec()),
             *test_prefetch_service()->last_removed_client_id);
 }
 
 }  // namespace offline_pages