Display GL window system binding information in about:gpu

ui/gl/gl_wgl_api_implementation.cc

Index: ui/gl/gl_wgl_api_implementation.cc
diff --git a/ui/gl/gl_wgl_api_implementation.cc b/ui/gl/gl_wgl_api_implementation.cc
index 063916af04915cbdc3436c4d19f48826b4abed56..e3f71d8359275fc8847662458f2afeed51934888 100644
--- a/ui/gl/gl_wgl_api_implementation.cc
+++ b/ui/gl/gl_wgl_api_implementation.cc
@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 #include "ui/gl/gl_wgl_api_implementation.h"
+#include "ui/gl/gl_implementation.h"
 
 namespace gfx {
 
@@ -64,6 +65,14 @@ void RealWGLApi::Initialize(DriverWGL* driver) {
 TraceWGLApi::~TraceWGLApi() {
 }
 
+bool GetGLWindowSystemBindingInfoWGL(GLWindowSystemBindingInfo* info) {
+  const char* extensions = wglGetExtensionsStringEXT();
+  *info = GLWindowSystemBindingInfo();
+  if (extensions)
+    info->extensions = extensions;
+  return true;
+}
+
 }  // namespace gfx