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

webkit/browser/fileapi/file_system_url_request_job.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "webkit/browser/fileapi/file_system_url_request_job.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
@@ skipping 39 matching lines @@
   std::string cache_control(net::HttpRequestHeaders::kCacheControl);
   cache_control.append(": no-cache");
   headers->AddHeader(cache_control);
 
   return headers;
 }
 
 FileSystemURLRequestJob::FileSystemURLRequestJob(
     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),
       is_directory_(false),
       remaining_bytes_(0),
       weak_factory_(this) {
 }
 
 FileSystemURLRequestJob::~FileSystemURLRequestJob() {}
 
 void FileSystemURLRequestJob::Start() {
   base::MessageLoop::current()->PostTask(
@@ skipping 78 matching lines @@
   if (response_info_)
     return 200;
   return URLRequestJob::GetResponseCode();
 }
 
 void FileSystemURLRequestJob::StartAsync() {
   if (!request_)
     return;
   DCHECK(!reader_.get());
   url_ = file_system_context_->CrackURL(request_->url());
+  if (!url_.is_valid()) {
+    file_system_context_->AttemptAutoMountForURLRequest(
+        request_,
+        storage_domain_,
+        base::Bind(&FileSystemURLRequestJob::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.
     NotifyFailed(net::ERR_FILE_NOT_FOUND);
     return;
   }
   file_system_context_->operation_runner()->GetMetadata(
       url_,
       base::Bind(&FileSystemURLRequestJob::DidGetMetadata,
                  weak_factory_.GetWeakPtr()));
 }
 
+void FileSystemURLRequestJob::DidAttemptAutoMount(base::File::Error result) {
+  if (result >= 0 &&
+      file_system_context_->CrackURL(request_->url()).is_valid()) {
+    StartAsync();
+  } else {
+    NotifyFailed(net::ERR_FILE_NOT_FOUND);
+  }
+}
+
 void FileSystemURLRequestJob::DidGetMetadata(
     base::File::Error error_code,
     const base::File::Info& file_info) {
   if (error_code != base::File::FILE_OK) {
     NotifyFailed(error_code == base::File::FILE_ERROR_INVALID_URL ?
                  net::ERR_INVALID_URL : net::ERR_FILE_NOT_FOUND);
     return;
   }
 
   // We may have been orphaned...
@@ skipping 55 matching lines @@
   }
 
   return false;
 }
 
 void FileSystemURLRequestJob::NotifyFailed(int rv) {
   NotifyDone(URLRequestStatus(URLRequestStatus::FAILED, rv));
 }
 
 }  // namespace fileapi