Adding an IO Data and keyed service to previews/

chrome/browser/profiles/profile_impl_io_data.cc

Index: chrome/browser/profiles/profile_impl_io_data.cc
diff --git a/chrome/browser/profiles/profile_impl_io_data.cc b/chrome/browser/profiles/profile_impl_io_data.cc
index cb3f838153fdbe695fede346ef37c195bac46e06..09bb042f8c3eea9c150e6b07806631f206c67738 100644
--- a/chrome/browser/profiles/profile_impl_io_data.cc
+++ b/chrome/browser/profiles/profile_impl_io_data.cc
@@ -6,55 +6,60 @@
 
 #include <memory>
 #include <set>
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/macros.h"
+#include "base/memory/ptr_util.h"
 #include "base/metrics/field_trial.h"
 #include "base/sequenced_task_runner.h"
 #include "base/stl_util.h"
 #include "base/strings/string_util.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "base/threading/worker_pool.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
 #include "chrome/browser/custom_handlers/protocol_handler_registry_factory.h"
 #include "chrome/browser/io_thread.h"
 #include "chrome/browser/net/chrome_network_delegate.h"
 #include "chrome/browser/net/http_server_properties_manager_factory.h"
 #include "chrome/browser/net/predictor.h"
 #include "chrome/browser/net/quota_policy_channel_id_store.h"
 #include "chrome/browser/net/sdch_owner_pref_storage.h"
 #include "chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_io_data.h"
 #include "chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_settings.h"
 #include "chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_settings_factory.h"
+#include "chrome/browser/previews/previews_service.h"
+#include "chrome/browser/previews/previews_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "components/cookie_config/cookie_store_util.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_io_data.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.h"
 #include "components/data_reduction_proxy/core/browser/data_store_impl.h"
 #include "components/domain_reliability/monitor.h"
 #include "components/net_log/chrome_net_log.h"
 #include "components/prefs/json_pref_store.h"
 #include "components/prefs/pref_filter.h"
 #include "components/prefs/pref_member.h"
 #include "components/prefs/pref_service.h"
+#include "components/previews/previews_io_data.h"
+#include "components/previews/previews_ui_service.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/cookie_store_factory.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/resource_context.h"
 #include "content/public/browser/storage_partition.h"
 #include "extensions/browser/extension_protocols.h"
 #include "extensions/common/constants.h"
 #include "net/base/cache_type.h"
 #include "net/base/sdch_manager.h"
 #include "net/cookies/cookie_store.h"
@@ -193,20 +198,28 @@ void ProfileImplIOData::Handle::Init(
           pool->GetSequenceToken(),
           base::SequencedWorkerPool::SKIP_ON_SHUTDOWN);
   std::unique_ptr<data_reduction_proxy::DataStore> store(
       new data_reduction_proxy::DataStoreImpl(profile_path));
   DataReductionProxyChromeSettingsFactory::GetForBrowserContext(profile_)
       ->InitDataReductionProxySettings(
           io_data_->data_reduction_proxy_io_data(), profile_->GetPrefs(),
           profile_->GetRequestContext(), std::move(store),
           BrowserThread::GetTaskRunnerForThread(BrowserThread::UI),
           db_task_runner);
+
+  io_data_->set_previews_io_data(base::MakeUnique<previews::PreviewsIOData>(
+      BrowserThread::GetTaskRunnerForThread(BrowserThread::UI),
+      BrowserThread::GetTaskRunnerForThread(BrowserThread::IO)));
+  PreviewsServiceFactory::GetForProfile(profile_)->set_previews_ui_service(
+      base::MakeUnique<previews::PreviewsUIService>(
+          io_data_->previews_io_data(),
+          BrowserThread::GetTaskRunnerForThread(BrowserThread::IO)));

[mmenke, 2016/09/08 22:40:27]

If this is currently an Android-only feature, as the docs say, should we just
#ifdef it out elsewhere, to decrease binary size?  Or even add a special define
for it - i.e. #if defined(ENABLE_PREVIEWS) or whatever.

 }
 
 content::ResourceContext*
     ProfileImplIOData::Handle::GetResourceContext() const {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   LazyInitialize();
   return GetResourceContextNoInit();
 }
 
 content::ResourceContext*