Add mechanism to auto mount file systems in response to a URL request.

webkit/browser/fileapi/file_system_dir_url_request_job.cc

Index: webkit/browser/fileapi/file_system_dir_url_request_job.cc
diff --git a/webkit/browser/fileapi/file_system_dir_url_request_job.cc b/webkit/browser/fileapi/file_system_dir_url_request_job.cc
index b0f19660aa84135187aaad9550aeb7fafafb8d68..fffe739e9a7f068bc7ff9e55251093f2b368a710 100644
--- a/webkit/browser/fileapi/file_system_dir_url_request_job.cc
+++ b/webkit/browser/fileapi/file_system_dir_url_request_job.cc
@@ -35,8 +35,10 @@ namespace fileapi {
 FileSystemDirURLRequestJob::FileSystemDirURLRequestJob(
     URLRequest* request,
     NetworkDelegate* network_delegate,
+    const std::string& storage_domain,
     FileSystemContext* file_system_context)
     : URLRequestJob(request, network_delegate),
+      storage_domain_(storage_domain),
       file_system_context_(file_system_context),
       weak_factory_(this) {
 }
@@ -81,6 +83,14 @@ void FileSystemDirURLRequestJob::StartAsync() {
   if (!request_)
     return;
   url_ = file_system_context_->CrackURL(request_->url());
+  if (!url_.is_valid()) {
+    file_system_context_->AttemptAutoMountForURLRequest(
+        request_,
+        storage_domain_,
+        base::Bind(&FileSystemDirURLRequestJob::DidAttemptAutoMount,
+                   weak_factory_.GetWeakPtr()));
+    return;
+  }
   if (!file_system_context_->CanServeURLRequest(url_)) {
     // In incognito mode the API is not usable and there should be no data.
     if (url_.is_valid() && VirtualPath::IsRootPath(url_.virtual_path())) {
@@ -99,6 +109,16 @@ void FileSystemDirURLRequestJob::StartAsync() {
       base::Bind(&FileSystemDirURLRequestJob::DidReadDirectory, this));
 }
 
+void FileSystemDirURLRequestJob::DidAttemptAutoMount(base::File::Error result) {
+  if (result >= 0 &&
+      file_system_context_->CrackURL(request_->url()).is_valid()) {
+    StartAsync();
+  } else {
+    NotifyDone(URLRequestStatus(URLRequestStatus::FAILED,
+                                net::ERR_FILE_NOT_FOUND));
+  }
+}
+
 void FileSystemDirURLRequestJob::DidReadDirectory(
     base::File::Error result,
     const std::vector<DirectoryEntry>& entries,