Remove GetPlatformDefaultEGLNativeDisplay() function.

ui/gl/gl_bindings.cc

 // Copyright 2014 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.
 
 #include "build/build_config.h"
 
 #if defined(USE_EGL)
 #include <EGL/egl.h>
 #endif
 
@@ skipping 22 matching lines @@
   const char* str = nullptr;
   str = wglGetExtensionsStringARB(GLSurfaceWGL::GetDisplayDC());
   if (str)
     return str;
   return wglGetExtensionsStringEXT();
 }
 #endif
 
 #if defined(USE_EGL)
 std::string DriverEGL::GetPlatformExtensions() {
-  EGLDisplay display = GLSurfaceEGL::InitializeDisplay();
+  EGLDisplay display = GLSurfaceEGL::GetHardwareDisplay();
   if (display == EGL_NO_DISPLAY)
     return "";
   const char* str = eglQueryString(display, EGL_EXTENSIONS);
   return str ? std::string(str) : "";
 }
 
 // static
 std::string DriverEGL::GetClientExtensions() {
   const char* str = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
   return str ? std::string(str) : "";
 }
 #endif
 
 #if defined(USE_GLX)
 std::string DriverGLX::GetPlatformExtensions() {
   const char* str = glXQueryExtensionsString(gfx::GetXDisplay(), 0);
   return str ? std::string(str) : "";
 }
 #endif
 
 }  // namespace gl