Replace most BrowserList::empty() and BrowserList::size() calls by multi-desktop aware calls.

chrome/browser/ui/browser_finder.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/ui/browser_finder.h"
 
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser_iterator.h"
 #include "chrome/browser/ui/browser_list_impl.h"
 #include "chrome/browser/ui/browser_window.h"
@@ skipping 179 matching lines @@
                              profile, Browser::FEATURE_NONE, kMatchAny);
 }
 
 Browser* FindLastActiveWithHostDesktopType(HostDesktopType type) {
   BrowserListImpl* browser_list_impl = BrowserListImpl::GetInstance(type);
   if (browser_list_impl)
     return browser_list_impl->GetLastActive();
   return NULL;
 }
 
+size_t GetTotalBrowserCount() {
+  size_t count = 0;
+  for (HostDesktopType t = HOST_DESKTOP_TYPE_FIRST; t < HOST_DESKTOP_TYPE_COUNT;
+       t = static_cast<HostDesktopType>(t + 1)) {
+    count += BrowserListImpl::GetInstance(t)->size();
+  }
+  return count;
+}
+
 size_t GetBrowserCount(Profile* profile) {
   return GetBrowserCountImpl(profile, kDefaultHostDesktopType, kMatchAny);
 }
 
 size_t GetTabbedBrowserCount(Profile* profile) {
   return GetBrowserCountImpl(profile, kDefaultHostDesktopType, kMatchTabbed);
 }
 
 }  // namespace chrome