Make scroll offset type of float in cc

ui/gfx/geometry/scroll_offset.cc

Index: ui/gfx/geometry/scroll_offset.cc
diff --git a/ui/gfx/x/x11_connection.cc b/ui/gfx/geometry/scroll_offset.cc
similarity index 54%
copy from ui/gfx/x/x11_connection.cc
copy to ui/gfx/geometry/scroll_offset.cc
index c5ee77f40d8f048cb912a074f71c13da00377268..37356d83a086d308b1fcbf2fae31e904eca9912e 100644
--- a/ui/gfx/x/x11_connection.cc
+++ b/ui/gfx/geometry/scroll_offset.cc
@@ -2,16 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "ui/gfx/x/x11_connection.h"
+#include "ui/gfx/geometry/scroll_offset.h"
 
-#include <X11/Xlib.h>
-
-#include "ui/gfx/x/x11_types.h"
+#include "base/strings/stringprintf.h"
 
 namespace gfx {
 
-bool InitializeThreadedX11() {
-  return XInitThreads() && gfx::GetXDisplay();
+std::string ScrollOffset::ToString() const {
+  return base::StringPrintf("[%lf %lf]", x_, y_);
 }
 
 }  // namespace gfx