Add a helper class that keeps per-profile information for FileSystem API

chrome/browser/renderer_host/resource_message_filter.cc

Index: chrome/browser/renderer_host/resource_message_filter.cc
diff --git a/chrome/browser/renderer_host/resource_message_filter.cc b/chrome/browser/renderer_host/resource_message_filter.cc
index f0cc11bae35353c5b1db809071a07c20f81c8ee1..bd37c089e8024a0431c5967326c9256b161bc8c1 100644
--- a/chrome/browser/renderer_host/resource_message_filter.cc
+++ b/chrome/browser/renderer_host/resource_message_filter.cc
@@ -31,6 +31,7 @@
 #include "chrome/browser/download/download_file.h"
 #include "chrome/browser/extensions/extension_message_service.h"
 #include "chrome/browser/file_system/file_system_dispatcher_host.h"
+#include "chrome/browser/file_system/file_system_host_context.h"
 #include "chrome/browser/geolocation/geolocation_permission_context.h"
 #include "chrome/browser/geolocation/geolocation_dispatcher_host.h"
 #include "chrome/browser/gpu_process_host.h"
@@ -255,6 +256,7 @@ ResourceMessageFilter::ResourceMessageFilter(
           new device_orientation::DispatcherHost(this->id()))),
       ALLOW_THIS_IN_INITIALIZER_LIST(file_system_dispatcher_host_(
           new FileSystemDispatcherHost(this,
+              profile->GetFileSystemHostContext(),
               profile->GetHostContentSettingsMap()))) {
   request_context_ = profile_->GetRequestContext();
   DCHECK(request_context_);