Make FileSystemContext respect StoragePartitions. filesystem:// urls will be properly isolated

chrome/browser/extensions/data_deleter.cc

Index: chrome/browser/extensions/data_deleter.cc
diff --git a/chrome/browser/extensions/data_deleter.cc b/chrome/browser/extensions/data_deleter.cc
index 409b8dfa2949a3928ce7d735a3973939ea85fa90..e1512b17062cfe4e559d2cec19a6f5bf1749af3e 100644
--- a/chrome/browser/extensions/data_deleter.cc
+++ b/chrome/browser/extensions/data_deleter.cc
@@ -6,6 +6,7 @@
 
 #include "base/bind.h"
 #include "base/file_util.h"
+#include "chrome/browser/extensions/extension_process_manager.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/settings/settings_frontend.h"
 #include "chrome/browser/profiles/profile.h"
@@ -14,6 +15,8 @@
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/dom_storage_context.h"
 #include "content/public/browser/indexed_db_context.h"
+#include "content/public/browser/resource_context.h"
+#include "content/public/browser/site_instance.h"
 #include "content/public/browser/storage_partition.h"
 #include "content/public/common/content_constants.h"
 #include "net/base/completion_callback.h"
@@ -98,7 +101,9 @@ DataDeleter::DataDeleter(
   } else {
     extension_request_context_ = profile->GetRequestContext();
   }
-  file_system_context_ = BrowserContext::GetFileSystemContext(profile);
+  file_system_context_ =
+      BrowserContext::GetDefaultStoragePartition(profile)->
+          GetFileSystemContext();
   storage_origin_ = storage_origin;
   origin_id_ =
       webkit_database::DatabaseUtil::GetOriginIdentifier(storage_origin_);