Move code in ui/gl/* from gfx:: to gl::

content/browser/renderer_host/render_widget_host_view_android.cc

Index: content/browser/renderer_host/render_widget_host_view_android.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_android.cc b/content/browser/renderer_host/render_widget_host_view_android.cc
index 2f4d49c91419648f5c0e88c6b2215172d88f5e50..8546375e07acd8f4777591be9f7f4a44ed45964a 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.cc
+++ b/content/browser/renderer_host/render_widget_host_view_android.cc
@@ -189,7 +189,7 @@ void GLHelperHolder::Initialize() {
   provider_ = new ContextProviderCommandBuffer(
       std::move(gpu_channel_host), gpu::GPU_STREAM_DEFAULT,
       gpu::GpuStreamPriority::NORMAL, gpu::kNullSurfaceHandle, url,
-      gfx::PreferIntegratedGpu, automatic_flushes, support_locking, limits,
+      gl::PreferIntegratedGpu, automatic_flushes, support_locking, limits,
       attributes, nullptr,
       command_buffer_metrics::BROWSER_OFFSCREEN_MAINTHREAD_CONTEXT);
   if (!provider_->BindToCurrentThread())