Take GL version and extensions correctly into account when binding functions

ui/gl/gl_surface_wgl.cc

Index: ui/gl/gl_surface_wgl.cc
diff --git a/ui/gl/gl_surface_wgl.cc b/ui/gl/gl_surface_wgl.cc
index 7e1c3a7ad1fe9f2ec1cf127ba6eeadfb1f80b0b3..61b79cb7a1fa976c6463fe7f83dab11517bfc689 100644
--- a/ui/gl/gl_surface_wgl.cc
+++ b/ui/gl/gl_surface_wgl.cc
@@ -164,25 +164,6 @@ bool GLSurfaceWGL::InitializeOneOff() {
   if (!wgl_display->Init())
     return false;
 
-  // Create a temporary GL context to bind to extension entry points.
-  HGLRC gl_context = wglCreateContext(wgl_display->device_context());
-  if (!gl_context) {
-    LOG(ERROR) << "Failed to create temporary context.";
-    return false;
-  }
-  if (!wglMakeCurrent(wgl_display->device_context(), gl_context)) {
-    LOG(ERROR) << "Failed to make temporary GL context current.";
-    wglDeleteContext(gl_context);
-    return false;
-  }
-  // Get bindings to extension functions that cannot be acquired without a
-  // current context.
-  InitializeGLBindingsGL();
-  InitializeGLBindingsWGL();
-
-  wglMakeCurrent(NULL, NULL);
-  wglDeleteContext(gl_context);
-
   g_display = wgl_display.release();
   initialized = true;
   return true;