Revert of Refactor context creation parameters into a struct.

ui/gl/gl_surface_egl.cc

Index: ui/gl/gl_surface_egl.cc
diff --git a/ui/gl/gl_surface_egl.cc b/ui/gl/gl_surface_egl.cc
index 0bce1d00911a2be32ed9ca1f70446fe8468112c5..ab258625a0417e09f34b1583cc63a69ec602fd8a 100644
--- a/ui/gl/gl_surface_egl.cc
+++ b/ui/gl/gl_surface_egl.cc
@@ -126,8 +126,6 @@
 
 const char* g_egl_extensions = nullptr;
 bool g_egl_create_context_robustness_supported = false;
-bool g_egl_create_context_bind_generates_resource_supported = false;
-bool g_egl_create_context_webgl_compatability_supported = false;
 bool g_egl_sync_control_supported = false;
 bool g_egl_window_fixed_size_supported = false;
 bool g_egl_surfaceless_context_supported = false;
@@ -480,10 +478,6 @@
   g_egl_extensions = eglQueryString(g_display, EGL_EXTENSIONS);
   g_egl_create_context_robustness_supported =
       HasEGLExtension("EGL_EXT_create_context_robustness");
-  g_egl_create_context_bind_generates_resource_supported =
-      HasEGLExtension("EGL_CHROMIUM_create_context_bind_generates_resource");
-  g_egl_create_context_webgl_compatability_supported =
-      HasEGLExtension("EGL_ANGLE_create_context_webgl_compatibility");
   g_egl_sync_control_supported =
       HasEGLExtension("EGL_CHROMIUM_sync_control");
   g_egl_window_fixed_size_supported =
@@ -515,7 +509,7 @@
     // to query for supported GL extensions.
     scoped_refptr<GLSurface> surface = new SurfacelessEGL(gfx::Size(1, 1));
     scoped_refptr<GLContext> context = InitializeGLContext(
-        new GLContextEGL(nullptr), surface.get(), GLContextAttribs());
+        new GLContextEGL(nullptr), surface.get(), PreferIntegratedGpu);
     if (!context->MakeCurrent(surface.get()))
       g_egl_surfaceless_context_supported = false;
 
@@ -540,8 +534,6 @@
 
   g_egl_extensions = nullptr;
   g_egl_create_context_robustness_supported = false;
-  g_egl_create_context_bind_generates_resource_supported = false;
-  g_egl_create_context_webgl_compatability_supported = false;
   g_egl_sync_control_supported = false;
   g_egl_window_fixed_size_supported = false;
   g_egl_surface_orientation_supported = false;
@@ -574,14 +566,6 @@
 // static
 bool GLSurfaceEGL::IsCreateContextRobustnessSupported() {
   return g_egl_create_context_robustness_supported;
-}
-
-bool GLSurfaceEGL::IsCreateContextBindGeneratesResourceSupported() {
-  return g_egl_create_context_bind_generates_resource_supported;
-}
-
-bool GLSurfaceEGL::IsCreateContextWebGLCompatabilitySupported() {
-  return g_egl_create_context_webgl_compatability_supported;
 }
 
 // static