Attach YUV420 to RGB converter to GLContext

ui/gl/gl_context_cgl.cc

Index: ui/gl/gl_context_cgl.cc
diff --git a/ui/gl/gl_context_cgl.cc b/ui/gl/gl_context_cgl.cc
index 374b38e1bb6a7e2e18734a39a32aa994c5b18aeb..4079e853db785eda96ff1b2492e44b37c40152a7 100644
--- a/ui/gl/gl_context_cgl.cc
+++ b/ui/gl/gl_context_cgl.cc
@@ -16,6 +16,8 @@
 #include "ui/gl/gl_implementation.h"
 #include "ui/gl/gl_surface.h"
 #include "ui/gl/gpu_switching_manager.h"
+#include "ui/gl/scoped_cgl.h"
+#include "ui/gl/yuv420_rgb_converter.h"
 
 namespace gfx {
 
@@ -136,6 +138,10 @@ bool GLContextCGL::Initialize(GLSurface* compatible_surface,
 }
 
 void GLContextCGL::Destroy() {
+  if (yuv420_rgb_converter_) {
+    gfx::ScopedCGLSetCurrentContext(static_cast<CGLContextObj>(context_));
+    yuv420_rgb_converter_.reset();
+  }
   if (discrete_pixelformat_) {
     if (base::MessageLoop::current() != nullptr) {
       // Delay releasing the pixel format for 10 seconds to reduce the number of
@@ -195,6 +201,12 @@ bool GLContextCGL::ForceGpuSwitchIfNeeded() {
   return true;
 }
 
+YUV420RGBConverter* GLContextCGL::GetYUV420RGBConverter() {
+  if (!yuv420_rgb_converter_)
+    yuv420_rgb_converter_.reset(new YUV420RGBConverter);
+  return yuv420_rgb_converter_.get();
+}
+
 bool GLContextCGL::MakeCurrent(GLSurface* surface) {
   DCHECK(context_);