X11: Use better visuals for OpenGL

gpu/config/gpu_info_collector.cc

Index: gpu/config/gpu_info_collector.cc
diff --git a/gpu/config/gpu_info_collector.cc b/gpu/config/gpu_info_collector.cc
index 527f85ea5a00696dbb27e1874c03d9647c604760..760caf99645bb35804ea224930f7ddbb0ff9c1c7 100644
--- a/gpu/config/gpu_info_collector.cc
+++ b/gpu/config/gpu_info_collector.cc
@@ -26,6 +26,10 @@
 #include "ui/gl/gl_version_info.h"
 #include "ui/gl/init/gl_factory.h"
 
+#if defined(USE_X11) && !defined(OS_CHROMEOS)
+#include "ui/gl/gl_visual_picker_glx.h"
+#endif
+
 namespace {
 
 scoped_refptr<gl::GLSurface> InitializeGLSurface() {
@@ -173,6 +177,14 @@ CollectInfoResult CollectGraphicsInfoGL(GPUInfo* gpu_info) {
         reinterpret_cast<GLint*>(&gpu_info->gl_reset_notification_strategy));
   }
 
+#if defined(USE_X11) && !defined(OS_CHROMEOS)
+  if (gl::GetGLImplementation() == gl::kGLImplementationDesktopGL) {

[Tom (Use chromium acct), 2016/09/22 19:53:29]

The glx library is not loaded unless gl::GetGLImplementation() ==
gl::kGLImplementationDesktopGL.  So, I can't make calls to glXGetConfig

+    gl::GLVisualPickerGLX* visual_picker = gl::GLVisualPickerGLX::GetInstance();
+    gpu_info->system_visual = visual_picker->system_visual().visualid;
+    gpu_info->rgba_visual = visual_picker->rgba_visual().visualid;
+  }
+#endif
+
   // TODO(kbr): remove once the destruction of a current context automatically
   // clears the current context.
   context->ReleaseCurrent(surface.get());
@@ -224,6 +236,11 @@ void MergeGPUInfoGL(GPUInfo* basic_gpu_info,
       context_gpu_info.video_encode_accelerator_supported_profiles;
   basic_gpu_info->jpeg_decode_accelerator_supported =
       context_gpu_info.jpeg_decode_accelerator_supported;
+
+#if defined(USE_X11) && !defined(OS_CHROMEOS)
+  basic_gpu_info->system_visual = context_gpu_info.system_visual;
+  basic_gpu_info->rgba_visual = context_gpu_info.rgba_visual;
+#endif
 }
 
 void IdentifyActiveGPU(GPUInfo* gpu_info) {
@@ -286,4 +303,3 @@ void IdentifyActiveGPU(GPUInfo* gpu_info) {
 }
 
 }  // namespace gpu
-