[fsp] Create a RequestManager per a ProvidedFileSystem instance.

chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.cc

 // Copyright 2013 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 "chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.h"
 
 #include <string>
 
 #include "base/values.h"
+#include "chrome/browser/chromeos/file_system_provider/provided_file_system_interface.h"
+#include "chrome/browser/chromeos/file_system_provider/request_manager.h"
 #include "chrome/browser/chromeos/file_system_provider/service.h"
 #include "chrome/common/extensions/api/file_system_provider.h"
 #include "chrome/common/extensions/api/file_system_provider_internal.h"
 
+using chromeos::file_system_provider::ProvidedFileSystemInterface;
+using chromeos::file_system_provider::RequestManager;
+using chromeos::file_system_provider::Service;
+
 namespace extensions {
 namespace {
 
 // Error names from
 // http://www.w3.org/TR/file-system-api/#errors-and-exceptions
+const char kNotFoundErrorName[] = "NotFoundError";
 const char kSecurityErrorName[] = "SecurityError";
 
 // Error messages.
 const char kEmptyNameErrorMessage[] = "Empty display name is not allowed.";
 const char kMountFailedErrorMessage[] = "Mounting the file system failed.";
 const char kUnmountFailedErrorMessage[] = "Unmounting the file system failed.";
 const char kResponseFailedErrorMessage[] =
     "Sending a response for the request failed.";
 
 // Creates a dictionary, which looks like a DOMError. The returned dictionary
@@ skipping 60 matching lines @@
   // It's an error if the display name is empty.
   if (params->display_name.empty()) {
     base::ListValue* result = new base::ListValue();
     result->Append(new base::StringValue(""));
     result->Append(CreateError(kSecurityErrorName,
                                kEmptyNameErrorMessage));
     SetResult(result);
     return false;
   }
 
-  chromeos::file_system_provider::Service* service =
-      chromeos::file_system_provider::Service::Get(GetProfile());
+  Service* service = Service::Get(GetProfile());
   DCHECK(service);
 
   int file_system_id =
       service->MountFileSystem(extension_id(), params->display_name);
 
   // If the |file_system_id| is zero, then it means that registering the file
   // system failed.
   // TODO(mtomasz): Pass more detailed errors, rather than just a bool.
   if (!file_system_id) {
     base::ListValue* result = new base::ListValue();
     result->Append(new base::FundamentalValue(0));
     result->Append(CreateError(kSecurityErrorName, kMountFailedErrorMessage));
     SetResult(result);
     return false;
   }
 
   base::ListValue* result = new base::ListValue();
   result->Append(new base::FundamentalValue(file_system_id));
   // Don't append an error on success.
 
   SetResult(result);
   return true;
 }
 
 bool FileSystemProviderUnmountFunction::RunImpl() {
   using api::file_system_provider::Unmount::Params;
   const scoped_ptr<Params> params(Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params);
 
-  chromeos::file_system_provider::Service* service =
-      chromeos::file_system_provider::Service::Get(GetProfile());
+  Service* service = Service::Get(GetProfile());
   DCHECK(service);
 
   if (!service->UnmountFileSystem(extension_id(), params->file_system_id)) {
     // TODO(mtomasz): Pass more detailed errors, rather than just a bool.
     base::ListValue* result = new base::ListValue();
     result->Append(CreateError(kSecurityErrorName, kUnmountFailedErrorMessage));
     SetResult(result);
     return false;
   }
 
   base::ListValue* result = new base::ListValue();
   SetResult(result);
   return true;
 }
 
 bool FileSystemProviderInternalUnmountRequestedSuccessFunction::RunImpl() {
   using api::file_system_provider_internal::UnmountRequestedSuccess::Params;
   const scoped_ptr<Params> params(Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params);
 
-  chromeos::file_system_provider::Service* service =
-      chromeos::file_system_provider::Service::Get(GetProfile());
+  Service* service = Service::Get(GetProfile());
   DCHECK(service);
 
-  if (!service->request_manager()->FulfillRequest(
-          extension_id(),
-          params->file_system_id,
-          params->request_id,
-          scoped_ptr<base::DictionaryValue>(),
-          false /* has_more */)) {
+  ProvidedFileSystemInterface* file_system =
+      service->GetProvidedFileSystem(extension_id(), params->file_system_id);
+  if (!file_system) {
+    base::ListValue* result = new base::ListValue();
+    result->Append(
+        CreateError(kNotFoundErrorName, kResponseFailedErrorMessage));
+    SetResult(result);
+    return false;
+  }
+
+  RequestManager* request_manager = file_system->GetRequestManager();
+  DCHECK(request_manager);
+
+  if (!request_manager->FulfillRequest(params->request_id,
+                                       scoped_ptr<base::DictionaryValue>(),
+                                       false /* has_more */)) {
     // TODO(mtomasz): Pass more detailed errors, rather than just a bool.
     base::ListValue* result = new base::ListValue();
     result->Append(
         CreateError(kSecurityErrorName, kResponseFailedErrorMessage));
     SetResult(result);
     return false;
   }
 
   base::ListValue* result = new base::ListValue();
   SetResult(result);
   return true;
 }
 
 bool FileSystemProviderInternalUnmountRequestedErrorFunction::RunImpl() {
   using api::file_system_provider_internal::UnmountRequestedError::Params;
   const scoped_ptr<Params> params(Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params);
 
-  chromeos::file_system_provider::Service* service =
-      chromeos::file_system_provider::Service::Get(GetProfile());
+  Service* service = Service::Get(GetProfile());
   DCHECK(service);
 
-  if (!service->request_manager()->RejectRequest(
-          extension_id(),
-          params->file_system_id,
-          params->request_id,
-          ProviderErrorToFileError(params->error))) {
+  ProvidedFileSystemInterface* file_system =
+      service->GetProvidedFileSystem(extension_id(), params->file_system_id);
+  if (!file_system) {
+    base::ListValue* result = new base::ListValue();
+    result->Append(
+        CreateError(kNotFoundErrorName, kResponseFailedErrorMessage));
+    SetResult(result);
+    return false;
+  }
+
+  RequestManager* request_manager = file_system->GetRequestManager();
+  DCHECK(request_manager);
+
+  if (!request_manager->RejectRequest(
+          params->request_id, ProviderErrorToFileError(params->error))) {
+    // TODO(mtomasz): Pass more detailed errors, rather than just a bool.
     base::ListValue* result = new base::ListValue();
     result->Append(
         CreateError(kSecurityErrorName, kResponseFailedErrorMessage));
     SetResult(result);
     return false;
   }
 
   base::ListValue* result = new base::ListValue();
   SetResult(result);
   return true;
 }
 
 }  // namespace extensions