Avoid sync IPCs for FileSystem API [chromium] (2/4)

chrome/browser/renderer_host/chrome_render_message_filter.cc

Index: chrome/browser/renderer_host/chrome_render_message_filter.cc
diff --git a/chrome/browser/renderer_host/chrome_render_message_filter.cc b/chrome/browser/renderer_host/chrome_render_message_filter.cc
index bb0ed1be0bba69c4ff16d024515d4d3445bc0300..ee1e8d96538c786c306e72585f375773d2a2b6ee 100644
--- a/chrome/browser/renderer_host/chrome_render_message_filter.cc
+++ b/chrome/browser/renderer_host/chrome_render_message_filter.cc
@@ -125,6 +125,8 @@ bool ChromeRenderMessageFilter::OnMessageReceived(const IPC::Message& message,
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_AllowDatabase, OnAllowDatabase)
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_AllowDOMStorage, OnAllowDOMStorage)
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_AllowFileSystem, OnAllowFileSystem)
+    IPC_MESSAGE_HANDLER_GENERIC(ChromeViewHostMsg_RequestFileSystemAccess,
+                        OnRequestFileSystemAccess(message))
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_AllowIndexedDB, OnAllowIndexedDB)
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_CanTriggerClipboardRead,
                         OnCanTriggerClipboardRead)
@@ -446,6 +448,26 @@ void ChromeRenderMessageFilter::OnAllowFileSystem(int render_frame_id,
                  render_process_id_, render_frame_id, origin_url, !*allowed));
 }
 
+void ChromeRenderMessageFilter::OnRequestFileSystemAccess(
+    const IPC::Message& message) {
+  int request_id;
+  GURL origin_url;
+  GURL top_origin_url;
+  if (!ChromeViewHostMsg_RequestFileSystemAccess::Read(
+      &message, &request_id, &origin_url, &top_origin_url))
+    return;
+
+  bool allowed =
+      cookie_settings_->IsSettingCookieAllowed(origin_url, top_origin_url);
+  // Record access to file system for potential display in UI.
+  BrowserThread::PostTask(
+      BrowserThread::UI, FROM_HERE,
+      base::Bind(&TabSpecificContentSettings::FileSystemAccessed,
+                 render_process_id_, request_id, origin_url, !allowed));
+  Send(new ChromeViewMsg_RequestFileSystemAccessResponse(
+          message.routing_id(), request_id, allowed));
+}
+
 void ChromeRenderMessageFilter::OnAllowIndexedDB(int render_frame_id,
                                                  const GURL& origin_url,
                                                  const GURL& top_origin_url,