Move geometric types to a separate, more lightweight target.

ui/gfx/geometry/rect_f.cc

Index: ui/gfx/geometry/rect_f.cc
diff --git a/ui/gfx/rect_f.cc b/ui/gfx/geometry/rect_f.cc
similarity index 89%
rename from ui/gfx/rect_f.cc
rename to ui/gfx/geometry/rect_f.cc
index c55752aa843e0dea806df6fe2c98100293c66f7f..44c08aafaff5506edc621ba9fe4d632600d68f90 100644
--- a/ui/gfx/rect_f.cc
+++ b/ui/gfx/geometry/rect_f.cc
@@ -2,15 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "ui/gfx/rect_f.h"
+#include "ui/gfx/geometry/rect_f.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
-#include "ui/gfx/insets_f.h"
-#include "ui/gfx/rect_base_impl.h"
-#include "ui/gfx/safe_integer_conversions.h"
+#include "ui/gfx/geometry/insets_f.h"
+#include "ui/gfx/geometry/rect_base_impl.h"
+#include "ui/gfx/geometry/safe_integer_conversions.h"
 
 namespace gfx {