ui: Allow individual test suites to opt-out of the TestCompositor.

ui/gl/gl_gl_api_implementation.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.
 
 #include "ui/gl/gl_gl_api_implementation.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 219 matching lines @@
   orig_fn.glDrawArraysFn = fn.glDrawArraysFn;
   fn.glDrawArraysFn = NullDrawDrawArraysFn;
 
   DCHECK(orig_fn.glDrawElementsFn == NULL);
   orig_fn.glDrawElementsFn = fn.glDrawElementsFn;
   fn.glDrawElementsFn = NullDrawDrawElementsFn;
 
   null_draw_bindings_enabled = true;
 }
 
+bool DriverGL::HasInitializedNullDrawBindings() {
+  return orig_fn.glClearFn != NULL && orig_fn.glDrawArraysFn != NULL &&
+         orig_fn.glDrawElementsFn != NULL;
+}
+
 bool DriverGL::SetNullDrawBindingsEnabled(bool enabled) {
   DCHECK(orig_fn.glClearFn != NULL);
   DCHECK(orig_fn.glDrawArraysFn != NULL);
   DCHECK(orig_fn.glDrawElementsFn != NULL);
 
   bool before = null_draw_bindings_enabled;
   null_draw_bindings_enabled = enabled;
   return before;
 }
 
@@ skipping 33 matching lines @@
 }
 
 void InitializeDebugGLBindingsGL() {
   g_driver_gl.InitializeDebugBindings();
 }
 
 void InitializeNullDrawGLBindingsGL() {
   g_driver_gl.InitializeNullDrawBindings();
 }
 
+bool HasInitializedNullDrawGLBindingsGL() {
+  return g_driver_gl.HasInitializedNullDrawBindings();
+}
+
 bool SetNullDrawGLBindingsEnabledGL(bool enabled) {
   return g_driver_gl.SetNullDrawBindingsEnabled(enabled);
 }
 
 void ClearGLBindingsGL() {
   if (g_real_gl) {
     delete g_real_gl;
     g_real_gl = NULL;
   }
   if (g_trace_gl) {
@@ skipping 127 matching lines @@
 const GLubyte* VirtualGLApi::glGetStringFn(GLenum name) {
   switch (name) {
     case GL_EXTENSIONS:
       return reinterpret_cast<const GLubyte*>(extensions_.c_str());
     default:
       return driver_->fn.glGetStringFn(name);
   }
 }
 
 }  // namespace gfx