Move SkGLContext and some GrGLInterface implementations to skgputest module

tools/gpu/gl/mac/CreatePlatformGLContext_mac.cpp

Index: tools/gpu/gl/mac/CreatePlatformGLContext_mac.cpp
diff --git a/src/gpu/gl/mac/SkCreatePlatformGLContext_mac.cpp b/tools/gpu/gl/mac/CreatePlatformGLContext_mac.cpp
similarity index 91%
rename from src/gpu/gl/mac/SkCreatePlatformGLContext_mac.cpp
rename to tools/gpu/gl/mac/CreatePlatformGLContext_mac.cpp
index c6eb34b8df60164e4dc7236130d2c5c4b14db5a0..7da99d7eb5b99d89167bebe6d6a6e493b6309f99 100644
--- a/src/gpu/gl/mac/SkCreatePlatformGLContext_mac.cpp
+++ b/tools/gpu/gl/mac/CreatePlatformGLContext_mac.cpp
@@ -6,16 +6,15 @@
  * found in the LICENSE file.
  */
 #include "SkTypes.h"
-#if defined(SK_BUILD_FOR_MAC)
 
-#include "gl/SkGLContext.h"
+#include "gl/GLContext.h"
 #include "AvailabilityMacros.h"
 
 #include <OpenGL/OpenGL.h>
 #include <dlfcn.h>
 
 namespace {
-class MacGLContext : public SkGLContext {
+class MacGLContext : public sk_gpu_test::GLContext {
 public:
     MacGLContext();
     ~MacGLContext() override;
@@ -107,9 +106,10 @@ GrGLFuncPtr MacGLContext::onPlatformGetProcAddress(const char* procName) const {
     return reinterpret_cast<GrGLFuncPtr>(dlsym(fGLLibrary, procName));
 }
 
-} // anonymous namespace
+}  // anonymous namespace
 
-SkGLContext* SkCreatePlatformGLContext(GrGLStandard forcedGpuAPI, SkGLContext* shareContext) {
+namespace sk_gpu_test {
+GLContext* CreatePlatformGLContext(GrGLStandard forcedGpuAPI, GLContext* shareContext) {
     SkASSERT(!shareContext);
     if (shareContext) {
         return nullptr;
@@ -125,5 +125,4 @@ SkGLContext* SkCreatePlatformGLContext(GrGLStandard forcedGpuAPI, SkGLContext* s
     }
     return ctx;
 }
-
-#endif//defined(SK_BUILD_FOR_MAC)
+}  // namespace sk_gpu_test