ui/gfx: Add ToString() function to Point class.

ui/gfx/point.h

 // Copyright (c) 2011 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 UI_GFX_POINT_H_
 #define UI_GFX_POINT_H_
 #pragma once
 
+#include <string>
+
 #include "build/build_config.h"
-
-#include <iosfwd>
-
 #include "ui/base/ui_export.h"
 
 #if defined(OS_WIN)
 typedef unsigned long DWORD;
 typedef struct tagPOINT POINT;
 #elif defined(OS_MACOSX)
 #include <ApplicationServices/ApplicationServices.h>
 #endif
 
 namespace gfx {
@@ skipping 61 matching lines @@
   bool operator<(const Point& rhs) const {
     return (y_ == rhs.y_) ? (x_ < rhs.x_) : (y_ < rhs.y_);
   }
 
 #if defined(OS_WIN)
   POINT ToPOINT() const;
 #elif defined(OS_MACOSX)
   CGPoint ToCGPoint() const;
 #endif
 
+  // Returns a string representation of point.
+  std::string ToString() const;
+
  private:
   int x_;
   int y_;
 };
 
-UI_EXPORT std::ostream& operator<<(std::ostream& out, const gfx::Point& p);
-
 }  // namespace gfx
 
 #endif  // UI_GFX_POINT_H_