Remove GetPlatformDefaultEGLNativeDisplay() function.

ui/gl/egl_api_unittest.cc

 // Copyright 2015 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 <memory>
 
 #include "base/command_line.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gl/gl_egl_api_implementation.h"
+#include "ui/gl/gl_surface_egl.h"
 #include "ui/gl/gl_switches.h"
 
 namespace gl {
 
 class EGLApiTest : public testing::Test {
  public:
   void SetUp() override {
     fake_client_extension_string_ = "";
     fake_extension_string_ = "";
 
@@ skipping 15 matching lines @@
     fake_extension_string_ = "";
   }
 
   void InitializeAPI(base::CommandLine* command_line) {
     api_.reset(new RealEGLApi());
     g_current_egl_context = api_.get();
     if (command_line)
       api_->InitializeWithCommandLine(&g_driver_egl, command_line);
     else
       api_->Initialize(&g_driver_egl);
+    g_driver_egl.InitializeClientExtensionBindings();
+    GLSurfaceEGL::InitializeDisplay(EGL_DEFAULT_DISPLAY);
     g_driver_egl.InitializeExtensionBindings();
   }
 
   void SetFakeExtensionString(const char* fake_string,
                               const char* fake_client_string) {
     fake_extension_string_ = fake_string;
     fake_client_extension_string_ = fake_client_string;
   }
 
   static EGLBoolean GL_BINDING_CALL FakeInitialize(EGLDisplay display,
@@ skipping 77 matching lines @@
   base::CommandLine command_line(base::CommandLine::NO_PROGRAM);
   command_line.AppendSwitchASCII(switches::kDisableGLExtensions,
                                  kFakeDisabledExtensions);
   InitializeAPI(&command_line);
 
   EXPECT_STREQ(kFilteredClientExtensions, GetExtensions().first);
   EXPECT_STREQ(kFilteredExtensions, GetExtensions().second);
 }
 
 }  // namespace gl