Refactor context creation parameters into a struct.

media/gpu/rendering_helper.cc

Index: media/gpu/rendering_helper.cc
diff --git a/media/gpu/rendering_helper.cc b/media/gpu/rendering_helper.cc
index 959da7ce8c2c6ea02ee87e6b98ac0589d2e49894..0625ea61dfd38aaed52fbf220d94a281434dd464 100644
--- a/media/gpu/rendering_helper.cc
+++ b/media/gpu/rendering_helper.cc
@@ -350,7 +350,7 @@ void RenderingHelper::Initialize(const RenderingHelperParams& params,
   screen_size_ = gl_surface_->GetSize();
 
   gl_context_ = gl::init::CreateGLContext(nullptr, gl_surface_.get(),
-                                          gl::PreferIntegratedGpu);
+                                          gl::GLContextAttribs());
   CHECK(gl_context_->MakeCurrent(gl_surface_.get()));
 
   CHECK_GT(params.window_sizes.size(), 0U);