Revert of Use the desktop GL core profile on Linux when ES3 support is requested.

ui/gl/gl_surface_x11.cc

Index: ui/gl/gl_surface_x11.cc
diff --git a/ui/gl/gl_surface_x11.cc b/ui/gl/gl_surface_x11.cc
index 63b0e96ab69ac0d97caa4c936e798a4ca4aef9f1..a384147cb2feb188cd3b3acde518f308e70b8511 100644
--- a/ui/gl/gl_surface_x11.cc
+++ b/ui/gl/gl_surface_x11.cc
@@ -52,7 +52,6 @@
 bool GLSurface::InitializeOneOffInternal() {
   switch (GetGLImplementation()) {
     case kGLImplementationDesktopGL:
-    case kGLImplementationDesktopGLCoreProfile:
       if (!GLSurfaceGLX::InitializeOneOff()) {
         LOG(ERROR) << "GLSurfaceGLX::InitializeOneOff failed.";
         return false;
@@ -284,8 +283,7 @@
 
       return surface;
     }
-    case kGLImplementationDesktopGL:
-    case kGLImplementationDesktopGLCoreProfile: {
+    case kGLImplementationDesktopGL: {
       scoped_refptr<GLSurface> surface(new NativeViewGLSurfaceGLX(window));
       if (!surface->Initialize())
         return NULL;
@@ -320,8 +318,7 @@
 
       return surface;
     }
-    case kGLImplementationDesktopGL:
-    case kGLImplementationDesktopGLCoreProfile: {
+    case kGLImplementationDesktopGL: {
       scoped_refptr<GLSurface> surface(new PbufferGLSurfaceGLX(size));
       if (!surface->Initialize())
         return NULL;