Straighten up includes of host_desktop.h/host_desktop_type.h

chrome/browser/ui/cocoa/task_manager_mac.mm

Index: chrome/browser/ui/cocoa/task_manager_mac.mm
diff --git a/chrome/browser/ui/cocoa/task_manager_mac.mm b/chrome/browser/ui/cocoa/task_manager_mac.mm
index e5732254068acfbfb93b34d62b6407cb117faf21..130c1caff855ff8d23fb04e21cfcb8b823bab4be 100644
--- a/chrome/browser/ui/cocoa/task_manager_mac.mm
+++ b/chrome/browser/ui/cocoa/task_manager_mac.mm
@@ -12,13 +12,15 @@
 #include "base/strings/sys_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #import "chrome/browser/ui/cocoa/window_size_autosaver.h"
-#include "chrome/browser/ui/host_desktop.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/grit/generated_resources.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/base/l10n/l10n_util_mac.h"
+#include "ui/gfx/host_desktop_type.h"
 #include "ui/gfx/image/image_skia.h"
 
+class Browser;
+
 namespace {
 
 // Width of "a" and most other letters/digits in "small" table views.