Bug 1440717 - Use RefPtr for CompositingRenderTargetOGL::mGL. r=Bas, a=ritu

--HG--
extra : source : b6d2d55223d2aa5cb85bbdf33075d1d38f2a9a30
extra : intermediate-source : 0ec90964e0bc479412a4da8a61d48b665211736e

gfx/layers/opengl/CompositingRenderTargetOGL.cpp

@@ -60,7 +60,7 @@ CompositingRenderTargetOGL::BindRenderTarget()
         msg.AppendPrintf("Framebuffer not complete -- CheckFramebufferStatus returned 0x%x, "
                          "GLContext=%p, IsOffscreen()=%d, mFBO=%d, aFBOTextureTarget=0x%x, "
                          "aRect.width=%d, aRect.height=%d",
-                         result, mGL, mGL->IsOffscreen(), mFBO, mInitParams.mFBOTextureTarget,
+                         result, mGL.get(), mGL->IsOffscreen(), mFBO, mInitParams.mFBOTextureTarget,
                          mInitParams.mSize.width, mInitParams.mSize.height);
         NS_WARNING(msg.get());
       }

gfx/layers/opengl/CompositingRenderTargetOGL.h

@@ -184,7 +184,7 @@ private:
    * the target is always cleared at the end of a frame.
    */
   RefPtr<CompositorOGL> mCompositor;
-  GLContext* mGL;
+  RefPtr<GLContext> mGL;
   GLuint mTextureHandle;
   GLuint mFBO;
 };