SWDEV-273235 - Remove implicit dependancy on WGL

Change-Id: I8355587be50492767caa3d2a4e602bdd6eb73960


[ROCm/clr commit: 4127be5c63]

projects/clr/opencl/amdocl/cl_gl.cpp

@@ -2126,8 +2126,8 @@ bool ClGlEvent::waitForFence() {
 // create a new GL context on this thread, which is shared with the original context
 
 #ifdef _WIN32
-  HDC tempDC_ = wglGetCurrentDC();
-  HGLRC tempGLRC_ = wglGetCurrentContext();
+  HDC tempDC_ = context().glenv()->wglGetCurrentDC_();
+  HGLRC tempGLRC_ = context().glenv()->wglGetCurrentContext_();
   // Set DC and GLRC
   if (tempDC_ && tempGLRC_) {
     ret = context().glenv()->glClientWaitSync_(gs, GL_SYNC_FLUSH_COMMANDS_BIT,

projects/clr/opencl/amdocl/cl_gl_amd.hpp

@@ -273,6 +273,7 @@ private:
     HDC         tempDC_;
     HGLRC       tempGLRC_;
 
+public:
     PFN_wglCreateContext     wglCreateContext_;
     PFN_wglGetCurrentContext wglGetCurrentContext_;
     PFN_wglGetCurrentDC      wglGetCurrentDC_;