Refactor context creation parameters into a struct.

gpu/perftests/texture_upload_perftest.cc

 // Copyright 2015 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 <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
 #include <memory>
 #include <vector>
@@ skipping 172 matching lines @@
     // On Ozone, the backend initializes the event system using a UI
     // thread.
     base::MessageLoopForUI main_loop;
 #endif
     static bool gl_initialized = gl::init::InitializeGLOneOff();
     DCHECK(gl_initialized);
     // Initialize an offscreen surface and a gl context.
     surface_ = gl::init::CreateOffscreenGLSurface(gfx::Size());
     gl_context_ =
         gl::init::CreateGLContext(nullptr,  // share_group
-                                  surface_.get(), gl::PreferIntegratedGpu);
+                                  surface_.get(), gl::GLContextAttribs());
     ui::ScopedMakeCurrent smc(gl_context_.get(), surface_.get());
     glGenTextures(1, &color_texture_);
     glBindTexture(GL_TEXTURE_2D, color_texture_);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
     glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, fbo_size_.width(),
                  fbo_size_.height(), 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
 
@@ skipping 347 matching lines @@
                           gpu_timing_client_->CheckAndResetTimerErrors();
   if (!gpu_timer_errors) {
     upload_and_draw_timers.GetAsMeasurement("upload_and_draw")
         .PrintResult("renaming");
     finish_timers.GetAsMeasurement("finish").PrintResult("renaming");
   }
 }
 
 }  // namespace
 }  // namespace gpu