For dyen: add ui/gl unittest

ui/gl/gl_gl_api_implementation.cc

Index: ui/gl/gl_gl_api_implementation.cc
diff --git a/ui/gl/gl_gl_api_implementation.cc b/ui/gl/gl_gl_api_implementation.cc
index 6752a25ee5a83644a00495804ffb027d81a54859..b14372fd6f109940d16b92b344e0d815ee0a6213 100644
--- a/ui/gl/gl_gl_api_implementation.cc
+++ b/ui/gl/gl_gl_api_implementation.cc
@@ -299,7 +299,7 @@ void InitializeStaticGLBindingsGL() {
     g_trace_gl = new TraceGLApi(g_real_gl);
     g_no_context_gl = new NoContextGLApi();
   }
-  g_real_gl->Initialize(&g_driver_gl);
+  g_real_gl->Initialize(&g_driver_gl, nullptr);
   g_gl = g_real_gl;
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnableGPUServiceTracing)) {
@@ -382,7 +382,7 @@ GLApi::GLApi() {
 }
 
 GLApi::~GLApi() {
-  if (GetCurrentGLApi() == this)
+  if (g_current_gl_context_tls /* for testing */ && GetCurrentGLApi() == this)
     SetGLApi(NULL);
 }
 
@@ -403,7 +403,7 @@ RealGLApi::RealGLApi() {
 RealGLApi::~RealGLApi() {
 }
 
-void RealGLApi::Initialize(DriverGL* driver) {
+void RealGLApi::Initialize(DriverGL* driver, base::CommandLine* command_line) {
   InitializeBase(driver);
 }