Use the previews black list for offline previews

chrome/browser/profiles/profile_impl_io_data.h

Index: chrome/browser/profiles/profile_impl_io_data.h
diff --git a/chrome/browser/profiles/profile_impl_io_data.h b/chrome/browser/profiles/profile_impl_io_data.h
index bb7070509681247c68a226986f4da9590bd1937a..ea15d7bbd358c29cbcda81fb700e2c88089a1567 100644
--- a/chrome/browser/profiles/profile_impl_io_data.h
+++ b/chrome/browser/profiles/profile_impl_io_data.h
@@ -35,20 +35,24 @@ class CookieStore;
 class FtpTransactionFactory;
 class HttpNetworkSession;
 class HttpServerProperties;
 class HttpServerPropertiesManager;
 class HttpTransactionFactory;
 class ProxyConfig;
 class SdchManager;
 class SdchOwner;
 }  // namespace net
 
+namespace previews {
+class PreviewsIOData;
+}
+
 namespace storage {
 class SpecialStoragePolicy;
 }  // namespace storage
 
 class ProfileImplIOData : public ProfileIOData {
  public:
   class Handle {
    public:
     explicit Handle(Profile* profile);
     ~Handle();
@@ -192,20 +196,27 @@ class ProfileImplIOData : public ProfileIOData {
       std::unique_ptr<ProtocolHandlerRegistry::JobInterceptorFactory>
           protocol_handler_interceptor,
       content::ProtocolHandlerMap* protocol_handlers,
       content::URLRequestInterceptorScopedVector request_interceptors)
       const override;
   net::URLRequestContext* AcquireIsolatedMediaRequestContext(
       net::URLRequestContext* app_context,
       const StoragePartitionDescriptor& partition_descriptor) const override;
   chrome_browser_net::Predictor* GetPredictor() override;
 
+  previews::PreviewsIOData* previews_io_data() const {
+    return previews_io_data_.get();
+  }

[mmenke, 2016/10/06 16:57:45]

I don't think we need this method - it's not used externally, so can just use
previews_io_data_.get() inline.

[RyanSturm, 2016/10/06 17:07:43]

Done.

+
+  void set_previews_io_data(
+      std::unique_ptr<previews::PreviewsIOData> previews_io_data) const;

[mmenke, 2016/10/06 16:57:45]

Again, don't think we need this - can just set it explicitly.  Handle is a
friend, and Handle::Init already reaches int the ProfileImpleIOData's guts.

[RyanSturm, 2016/10/06 17:07:43]

Good point. Didn't think enough about the refactor.

+
   // Deletes all network related data since |time|. It deletes transport
   // security state since |time| and also deletes HttpServerProperties data.
   // Works asynchronously, however if the |completion| callback is non-null,
   // it will be posted on the UI thread once the removal process completes.
   void ClearNetworkingHistorySinceOnIOThread(base::Time time,
                                              const base::Closure& completion);
 
   mutable std::unique_ptr<
       data_reduction_proxy::DataReductionProxyNetworkDelegate>
       network_delegate_;
@@ -232,19 +243,21 @@ class ProfileImplIOData : public ProfileIOData {
 
   mutable std::unique_ptr<net::URLRequestJobFactory> main_job_factory_;
   mutable std::unique_ptr<net::URLRequestJobFactory> extensions_job_factory_;
 
   mutable std::unique_ptr<domain_reliability::DomainReliabilityMonitor>
       domain_reliability_monitor_;
 
   mutable std::unique_ptr<net::SdchManager> sdch_manager_;
   mutable std::unique_ptr<net::SdchOwner> sdch_policy_;
 
+  mutable std::unique_ptr<previews::PreviewsIOData> previews_io_data_;
+
   // Parameters needed for isolated apps.
   base::FilePath profile_path_;
   int app_cache_max_size_;
   int app_media_cache_max_size_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileImplIOData);
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_IMPL_IO_DATA_H_