Remove unsafe mode to enable es3 api by default for WebGL2 and ES3 context

ui/gl/gl_context_wgl.cc

 // 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.
 
 // This file implements the GLContextWGL and PbufferGLContext classes.
 
 #include "ui/gl/gl_context_wgl.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 12 matching lines @@
     GLSurface* compatible_surface, GpuPreference gpu_preference) {
   // Get the handle of another initialized context in the share group _before_
   // setting context_. Otherwise this context will be considered initialized
   // and could potentially be returned by GetHandle.
   HGLRC share_handle = static_cast<HGLRC>(share_group()->GetHandle());
 
   HDC device_context = static_cast<HDC>(compatible_surface->GetHandle());
   bool has_wgl_create_context_arb =
       strstr(wglGetExtensionsStringARB(device_context),
              "WGL_ARB_create_context") != nullptr;
-  bool create_core_profile = has_wgl_create_context_arb &&
-                             base::CommandLine::ForCurrentProcess()->HasSwitch(
-                                 switches::kEnableUnsafeES3APIs);
+  bool create_core_profile = has_wgl_create_context_arb;
 
   if (create_core_profile) {
     std::pair<int, int> attempt_versions[] = {
         {4, 5}, {4, 4}, {4, 3}, {4, 2}, {4, 1}, {4, 0}, {3, 3}, {3, 2},
     };
 
     for (const auto& version : attempt_versions) {
       const int attribs[] = {
           WGL_CONTEXT_MAJOR_VERSION_ARB,
           version.first,
@@ skipping 122 matching lines @@
     return GLContext::GetExtensions() + " " + extensions;
 
   return GLContext::GetExtensions();
 }
 
 GLContextWGL::~GLContextWGL() {
   Destroy();
 }
 
 }  // namespace gl