Return different IDs from TestWebGraphicsContext3D::createTexture

ui/compositor/test_web_graphics_context_3d.h

 // Copyright (c) 2012 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_COMPOSITOR_TEST_WEB_GRAPHICS_CONTEXT_3D_H_
 #define UI_COMPOSITOR_TEST_WEB_GRAPHICS_CONTEXT_3D_H_
 #pragma once
 
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
@@ skipping 430 matching lines @@
   virtual void getQueryivEXT(WebKit::WGC3Denum,
                              WebKit::WGC3Denum,
                              WebKit::WGC3Dint*) {}
   virtual void getQueryObjectuivEXT(WebKit::WebGLId,
                                     WebKit::WGC3Denum,
                                     WebKit::WGC3Duint*) {}
 
  private:
   scoped_refptr<gfx::GLContext> gl_context_;
   scoped_refptr<gfx::GLSurface> gl_surface_;
+  unsigned next_texture_id_;
 
   DISALLOW_COPY_AND_ASSIGN(TestWebGraphicsContext3D);
 };
 
 }  // namespace ui
 
 #endif  // UI_COMPOSITOR_TEST_WEB_GRAPHICS_CONTEXT_3D_H_