Refactor context creation parameters into a struct.

android_webview/browser/test/fake_window.cc

Index: android_webview/browser/test/fake_window.cc
diff --git a/android_webview/browser/test/fake_window.cc b/android_webview/browser/test/fake_window.cc
index cd47a3c93e4beef8ec747100e7afcf5b04688a0c..4c95285b2f2f4cfeb8e080b87a0d044f6c4bc1aa 100644
--- a/android_webview/browser/test/fake_window.cc
+++ b/android_webview/browser/test/fake_window.cc
@@ -189,8 +189,10 @@ void FakeWindow::InitializeOnRT(base::WaitableEvent* sync) {
   surface_ = gl::init::CreateOffscreenGLSurface(surface_size_);
   DCHECK(surface_);
   DCHECK(surface_->GetHandle());
+  gl::GLContextAttribs context_attribs;
+  context_attribs.gpu_preference = gl::PreferDiscreteGpu;

[piman, 2016/11/07 21:01:01]

nit: ditto.

[Geoff Lang, 2016/11/07 21:36:20]

Done.

   context_ =
-      gl::init::CreateGLContext(nullptr, surface_.get(), gl::PreferDiscreteGpu);
+      gl::init::CreateGLContext(nullptr, surface_.get(), context_attribs);
   DCHECK(context_);
   sync->Signal();
 }