Handle more browser commands in ash.

chrome/browser/sessions/tab_restore_service.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 "chrome/browser/sessions/tab_restore_service.h"
 
 #include <algorithm>
 #include <iterator>
 #include <map>
 
@@ skipping 456 matching lines @@
   // Request the tabs closed in the last session. If the last session crashed,
   // this won't contain the tabs/window that were open at the point of the
   // crash (the call to GetLastSession above requests those).
   ScheduleGetLastSessionCommands(
       new InternalGetCommandsRequest(
           base::Bind(&TabRestoreService::OnGotLastSessionCommands,
                      base::Unretained(this))),
       &load_consumer_);
 }
 
+bool TabRestoreService::IsLoaded() const {
+  return !(load_state_ & (NOT_LOADED | LOADING));
+}
+
 void TabRestoreService::Shutdown() {
   if (backend())
     Save();
 }
 
 void TabRestoreService::Save() {
   int to_write_count = std::min(entries_to_write_,
                                 static_cast<int>(entries_.size()));
   entries_to_write_ = 0;
   if (entries_written_ + to_write_count > kEntriesPerReset) {
@@ skipping 754 matching lines @@
   // the front, not the end and we just added the entries to the end).
   entries_to_write_ = staging_entries_.size();
 
   PruneEntries();
   NotifyTabsChanged();
 }
 
 Time TabRestoreService::TimeNow() const {
   return time_factory_ ? time_factory_->TimeNow() : Time::Now();
 }