1 files changed, 3 insertions, 2 deletions
diff --git a/chromium/ui/gl/child_window_win.h b/chromium/ui/gl/child_window_win.h
index c977e76bdb8..81bd99a8683 100644
--- a/chromium/ui/gl/child_window_win.h
+++ b/chromium/ui/gl/child_window_win.h
@@ -8,6 +8,7 @@
 #include "base/memory/weak_ptr.h"
 #include "base/task_runner.h"
 #include "base/threading/thread.h"
+#include "ui/gl/gl_export.h"
 
 #include <windows.h>
 
@@ -16,12 +17,12 @@ namespace gl {
 // The window DirectComposition renders into needs to be owned by the process
 // that's currently doing the rendering. The class creates and owns a window
 // which is reparented by the browser to be a child of its window.
-class ChildWindowWin {
+class GL_EXPORT ChildWindowWin {
  public:
   explicit ChildWindowWin(HWND parent_window);
   ~ChildWindowWin();
 
-  bool Initialize();
+  void Initialize();
   HWND window() const { return window_; }
 
   scoped_refptr<base::TaskRunner> GetTaskRunnerForTesting();