For dyen: add ui/gl unittest

ui/gl/gl_gl_api_implementation.h

Index: ui/gl/gl_gl_api_implementation.h
diff --git a/ui/gl/gl_gl_api_implementation.h b/ui/gl/gl_gl_api_implementation.h
index d4086006b6b51babf299646b6c7594d2fb06ccef..2c4dd16010d12c9bec7f27a5f0742bd42a73d507 100644
--- a/ui/gl/gl_gl_api_implementation.h
+++ b/ui/gl/gl_gl_api_implementation.h
@@ -9,6 +9,10 @@
 #include "ui/gl/gl_bindings.h"
 #include "ui/gl/gl_export.h"
 
+namespace base {
+class CommandLine;
+}
+
 namespace gpu {
 namespace gles2 {
 class GLES2Decoder;
@@ -51,9 +55,9 @@ class GLApiBase : public GLApi {
 // Implemenents the GL API by calling directly into the driver.
 class RealGLApi : public GLApiBase {
  public:
-  RealGLApi();
-  ~RealGLApi() override;
-  void Initialize(DriverGL* driver);
+  GL_EXPORT RealGLApi();
+  GL_EXPORT ~RealGLApi() override;
+  GL_EXPORT void Initialize(DriverGL* driver, base::CommandLine* command_line);
 
  private:
   void glFinishFn() override;