Move geometric types to a separate, more lightweight target.

ui/gfx/geometry/insets_f.h

Index: ui/gfx/geometry/insets_f.h
diff --git a/ui/gfx/insets_f.h b/ui/gfx/geometry/insets_f.h
similarity index 81%
copy from ui/gfx/insets_f.h
copy to ui/gfx/geometry/insets_f.h
index 43b801dcb226c17194c3543fadcbc98275544c58..ac3585a5a59ee1258bbc5dc42435319ef9a55522 100644
--- a/ui/gfx/insets_f.h
+++ b/ui/gfx/geometry/insets_f.h
@@ -2,14 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef UI_GFX_INSETS_F_H_
-#define UI_GFX_INSETS_F_H_
+#ifndef UI_GFX_GEOMETRY_INSETS_F_H_
+#define UI_GFX_GEOMETRY_INSETS_F_H_
 
 #include <string>
 
 #include "build/build_config.h"
+#include "ui/gfx/geometry/insets_base.h"
 #include "ui/gfx/gfx_export.h"
-#include "ui/gfx/insets_base.h"
 
 namespace gfx {
 
@@ -30,4 +30,4 @@ extern template class InsetsBase<InsetsF, float>;
 
 }  // namespace gfx
 
-#endif  // UI_GFX_INSETS_F_H_
+#endif  // UI_GFX_GEOMETRY_INSETS_F_H_