Keep track of ServiceWorkerContext's BrowserContext and expose it.

content/browser/storage_partition_impl.cc

Index: content/browser/storage_partition_impl.cc
diff --git a/content/browser/storage_partition_impl.cc b/content/browser/storage_partition_impl.cc
index 5055f001d532fae0eba131cf38b6bc7a2c9ce314..e6a556197310c47e1785b2bb5ae6e0955367495e 100644
--- a/content/browser/storage_partition_impl.cc
+++ b/content/browser/storage_partition_impl.cc
@@ -360,6 +360,7 @@ void StoragePartitionImpl::DataDeletionHelper::ClearQuotaManagedDataOnIOThread(
 }
 
 StoragePartitionImpl::StoragePartitionImpl(
+    BrowserContext* browser_context,
     const base::FilePath& partition_path,
     storage::QuotaManager* quota_manager,
     ChromeAppCacheService* appcache_service,
@@ -385,10 +386,13 @@ StoragePartitionImpl::StoragePartitionImpl(
       special_storage_policy_(special_storage_policy),
       geofencing_manager_(geofencing_manager),
       host_zoom_level_context_(host_zoom_level_context),
-      navigator_connect_context_(navigator_connect_context) {
+      navigator_connect_context_(navigator_connect_context),
+      browser_context_(browser_context) {
 }
 
 StoragePartitionImpl::~StoragePartitionImpl() {
+  browser_context_ = nullptr;
+
   // These message loop checks are just to avoid leaks in unittests.
   if (GetDatabaseTracker() &&
       BrowserThread::IsMessageLoopValid(BrowserThread::FILE)) {
@@ -411,8 +415,6 @@ StoragePartitionImpl::~StoragePartitionImpl() {
     GetGeofencingManager()->Shutdown();
 }
 
-// TODO(ajwong): Break the direct dependency on |context|. We only
-// need 3 pieces of info from it.
 StoragePartitionImpl* StoragePartitionImpl::Create(
     BrowserContext* context,
     bool in_memory,
@@ -491,13 +493,17 @@ StoragePartitionImpl* StoragePartitionImpl::Create(
   scoped_refptr<NavigatorConnectContext> navigator_connect_context =
       new NavigatorConnectContext(service_worker_context);
 
-  return new StoragePartitionImpl(
-      partition_path, quota_manager.get(), appcache_service.get(),
+  StoragePartitionImpl* storage_partition = new StoragePartitionImpl(
+      context, partition_path, quota_manager.get(), appcache_service.get(),
       filesystem_context.get(), database_tracker.get(),
       dom_storage_context.get(), indexed_db_context.get(),
       service_worker_context.get(), webrtc_identity_store.get(),
       special_storage_policy.get(), geofencing_manager.get(),
       host_zoom_level_context.get(), navigator_connect_context.get());
+
+  service_worker_context->set_storage_partition(storage_partition);
+
+  return storage_partition;
 }
 
 base::FilePath StoragePartitionImpl::GetPath() {
@@ -853,6 +859,10 @@ WebRTCIdentityStore* StoragePartitionImpl::GetWebRTCIdentityStore() {
   return webrtc_identity_store_.get();
 }
 
+BrowserContext* StoragePartitionImpl::browser_context() const {
+  return browser_context_;
+}
+
 void StoragePartitionImpl::OverrideQuotaManagerForTesting(
     storage::QuotaManager* quota_manager) {
   quota_manager_ = quota_manager;