Rename "test" ozone platform to "headless"

ui/ozone/platform/eglheadless/eglplatform_shim.h

 // Copyright 2014 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.
 
 #ifndef __eglplatform_shim_h_
 #define __eglplatform_shim_h_
 
 #include <stdbool.h>
 #include <stdint.h>
 
@@ skipping 30 matching lines @@
 // Create window handle & query window properties (called from browser process).
 SHIM_EXPORT ShimNativeWindowId ShimCreateWindow(void);
 SHIM_EXPORT bool ShimQueryWindow(ShimNativeWindowId window_id,
                                  int attribute,
                                  int* value);
 SHIM_EXPORT bool ShimDestroyWindow(ShimNativeWindowId window_id);
 
 // Manage actual EGL platform objects (called from GPU process).
 SHIM_EXPORT ShimEGLNativeDisplayType ShimGetNativeDisplay(void);
 SHIM_EXPORT ShimEGLNativeWindowType
-    ShimGetNativeWindow(ShimNativeWindowId native_window_id);
+ShimGetNativeWindow(ShimNativeWindowId native_window_id);
 SHIM_EXPORT bool ShimReleaseNativeWindow(ShimEGLNativeWindowType native_window);
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif /* __eglplatform_shim_h */