Revert of GLContextGLX: try all GL versions from the highest.

ui/gl/gl_surface_glx.cc

Index: ui/gl/gl_surface_glx.cc
diff --git a/ui/gl/gl_surface_glx.cc b/ui/gl/gl_surface_glx.cc
index 848dc45848cf1c9e1fc666296cd6c34863a4cd20..89fc9806bcaea5e8eab9daca33140c6a2046146f 100644
--- a/ui/gl/gl_surface_glx.cc
+++ b/ui/gl/gl_surface_glx.cc
@@ -37,8 +37,6 @@
 Display* g_display = nullptr;
 bool g_glx_context_create = false;
 bool g_glx_create_context_robustness_supported = false;
-bool g_glx_create_context_profile_supported = false;
-bool g_glx_create_context_profile_es2_supported = false;
 bool g_glx_texture_from_pixmap_supported = false;
 bool g_glx_oml_sync_control_supported = false;
 
@@ -393,10 +391,6 @@
       HasGLXExtension("GLX_ARB_create_context");
   g_glx_create_context_robustness_supported =
       HasGLXExtension("GLX_ARB_create_context_robustness");
-  g_glx_create_context_profile_supported =
-      HasGLXExtension("GLX_ARB_create_context_profile");
-  g_glx_create_context_profile_es2_supported =
-      HasGLXExtension("GLX_ARB_create_context_es2_profile");
   g_glx_texture_from_pixmap_supported =
       HasGLXExtension("GLX_EXT_texture_from_pixmap");
   g_glx_oml_sync_control_supported =
@@ -430,16 +424,6 @@
 // static
 bool GLSurfaceGLX::IsCreateContextRobustnessSupported() {
   return g_glx_create_context_robustness_supported;
-}
-
-// static
-bool GLSurfaceGLX::IsCreateContextProfileSupported() {
-  return g_glx_create_context_profile_supported;
-}
-
-// static
-bool GLSurfaceGLX::IsCreateContextES2ProfileSupported() {
-  return g_glx_create_context_profile_es2_supported;
 }
 
 // static