Add Worker support for FileSystem API.

chrome/browser/worker_host/worker_process_host.cc

Index: chrome/browser/worker_host/worker_process_host.cc
diff --git a/chrome/browser/worker_host/worker_process_host.cc b/chrome/browser/worker_host/worker_process_host.cc
index 1a9d167c4e7b43f4ee5a0360f5165b30911334f0..8e9f193d2971fdfcc9316d05885d7d54ceb1abc0 100644
--- a/chrome/browser/worker_host/worker_process_host.cc
+++ b/chrome/browser/worker_host/worker_process_host.cc
@@ -16,6 +16,7 @@
 #include "chrome/browser/appcache/appcache_dispatcher_host.h"
 #include "chrome/browser/chrome_thread.h"
 #include "chrome/browser/child_process_security_policy.h"
+#include "chrome/browser/file_system/file_system_dispatcher_host.h"
 #include "chrome/browser/net/chrome_url_request_context.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/renderer_host/database_dispatcher_host.h"
@@ -63,7 +64,11 @@ WorkerProcessHost::WorkerProcessHost(
     : BrowserChildProcessHost(WORKER_PROCESS, resource_dispatcher_host),
       request_context_(request_context),
       appcache_dispatcher_host_(
-          new AppCacheDispatcherHost(request_context)) {
+          new AppCacheDispatcherHost(request_context)),
+      ALLOW_THIS_IN_INITIALIZER_LIST(file_system_dispatcher_host_(
+          new FileSystemDispatcherHost(this,
+              request_context->file_system_host_context(),
+              request_context->host_content_settings_map()))) {
   next_route_id_callback_.reset(NewCallbackWithReturnValue(
       WorkerService::GetInstance(), &WorkerService::next_worker_route_id));
   db_dispatcher_host_ = new DatabaseDispatcherHost(
@@ -76,6 +81,9 @@ WorkerProcessHost::~WorkerProcessHost() {
   // Shut down the database dispatcher host.
   db_dispatcher_host_->Shutdown();
 
+  // Shut down the file system dispatcher host.
+  file_system_dispatcher_host_->Shutdown();
+
   // Let interested observers know we are being deleted.
   NotificationService::current()->Notify(
       NotificationType::WORKER_PROCESS_HOST_SHUTDOWN,
@@ -122,6 +130,7 @@ bool WorkerProcessHost::Init() {
 #if defined(OS_WIN)
     switches::kDisableDesktopNotifications,
 #endif
+    switches::kEnableFileSystem,
   };
   cmd_line->CopySwitchesFrom(*CommandLine::ForCurrentProcess(), kSwitchNames,
                              arraysize(kSwitchNames));
@@ -233,6 +242,7 @@ void WorkerProcessHost::OnMessageReceived(const IPC::Message& message) {
   bool handled =
       appcache_dispatcher_host_->OnMessageReceived(message, &msg_is_ok) ||
       db_dispatcher_host_->OnMessageReceived(message, &msg_is_ok) ||
+      file_system_dispatcher_host_->OnMessageReceived(message, &msg_is_ok) ||
       MessagePortDispatcher::GetInstance()->OnMessageReceived(
           message, this, next_route_id_callback_.get(), &msg_is_ok);
 
@@ -281,6 +291,7 @@ void WorkerProcessHost::OnMessageReceived(const IPC::Message& message) {
 
 void WorkerProcessHost::OnProcessLaunched() {
   db_dispatcher_host_->Init(handle());
+  file_system_dispatcher_host_->Init(handle());
 }
 
 CallbackWithReturnValue<int>::Type* WorkerProcessHost::GetNextRouteIdCallback(