[Feed] FeedHostService holds FeedNetworkingHost.

Bug: 838609
Change-Id: Idd7f0043064894b414565d2d4e4955658b9cfccb
Reviewed-on: https://chromium-review.googlesource.com/1041069Reviewed-by: Patrick Noland <pnoland@chromium.org>
Commit-Queue: Sky Malice <skym@chromium.org>
Cr-Commit-Position: refs/heads/master@{#555772}

chrome/browser/android/feed/feed_host_service_factory.cc

@@ -4,9 +4,19 @@
 
 #include "chrome/browser/android/feed/feed_host_service_factory.h"
 
+#include <memory>
+#include <string>
+#include <utility>
+
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/signin/identity_manager_factory.h"
+#include "chrome/common/channel_info.h"
 #include "components/feed/core/feed_host_service.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
+#include "components/version_info/version_info.h"
 #include "content/public/browser/browser_context.h"
+#include "content/public/browser/storage_partition.h"
+#include "google_apis/google_api_keys.h"
 
 namespace feed {
 
@@ -31,7 +41,24 @@ FeedHostServiceFactory::~FeedHostServiceFactory() = default;
 
 KeyedService* FeedHostServiceFactory::BuildServiceInstanceFor(
     content::BrowserContext* context) const {
-  return new FeedHostService();
+  Profile* profile = Profile::FromBrowserContext(context);
+  content::StoragePartition* storage_partition =
+      content::BrowserContext::GetDefaultStoragePartition(context);
+
+  identity::IdentityManager* identity_manager =
+      IdentityManagerFactory::GetForProfile(profile);
+  std::string api_key;
+  if (google_apis::IsGoogleChromeAPIKeyUsed()) {
+    bool is_stable_channel =
+        chrome::GetChannel() == version_info::Channel::STABLE;
+    api_key = is_stable_channel ? google_apis::GetAPIKey()
+                                : google_apis::GetNonStableAPIKey();
+  }
+  auto networking_host = std::make_unique<FeedNetworkingHost>(
+      identity_manager, api_key,
+      storage_partition->GetURLLoaderFactoryForBrowserProcess());
+
+  return new FeedHostService(std::move(networking_host));
 }
 
 content::BrowserContext* FeedHostServiceFactory::GetBrowserContextToUse(

components/feed/core/feed_host_service.cc

@@ -4,10 +4,18 @@
 
 #include "components/feed/core/feed_host_service.h"
 
+#include <utility>
+
 namespace feed {
 
-FeedHostService::FeedHostService() {}
+FeedHostService::FeedHostService(
+    std::unique_ptr<FeedNetworkingHost> networking_host)
+    : networking_host_(std::move(networking_host)) {}
 
 FeedHostService::~FeedHostService() = default;
 
+FeedNetworkingHost* FeedHostService::GetFeedNetworkingHost() {
+  return networking_host_.get();
+}
+
 }  // namespace feed

components/feed/core/feed_host_service.h

@@ -5,7 +5,10 @@
 #ifndef COMPONENTS_FEED_CORE_FEED_HOST_SERVICE_H_
 #define COMPONENTS_FEED_CORE_FEED_HOST_SERVICE_H_
 
+#include <memory>
+
 #include "base/macros.h"
+#include "components/feed/core/feed_networking_host.h"
 #include "components/keyed_service/core/keyed_service.h"
 
 namespace feed {
@@ -17,10 +20,13 @@ namespace feed {
 // yet.
 class FeedHostService : public KeyedService {
  public:
-  FeedHostService();
+  explicit FeedHostService(std::unique_ptr<FeedNetworkingHost> networking_host);
   ~FeedHostService() override;
+  FeedNetworkingHost* GetFeedNetworkingHost();
 
  private:
+  std::unique_ptr<FeedNetworkingHost> networking_host_;
+
   DISALLOW_COPY_AND_ASSIGN(FeedHostService);
 };