Moved the majority of WebGL functionality into WebGLRenderingContextBase

Source/core/html/canvas/WebGLContextGroup.h

Index: Source/core/html/canvas/WebGLContextGroup.h
diff --git a/Source/core/html/canvas/WebGLContextGroup.h b/Source/core/html/canvas/WebGLContextGroup.h
index 935869025088c408859e0049678d2366d6441a7e..6c2f995354013332bda0e70ba332cefb2c2f7aec 100644
--- a/Source/core/html/canvas/WebGLContextGroup.h
+++ b/Source/core/html/canvas/WebGLContextGroup.h
@@ -26,7 +26,7 @@
 #ifndef WebGLContextGroup_h
 #define WebGLContextGroup_h
 
-#include "core/html/canvas/WebGLRenderingContext.h"
+#include "core/html/canvas/WebGLRenderingContextBase.h"
 #include "wtf/HashSet.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
@@ -39,7 +39,7 @@ namespace WebCore {
 
 class WebGLExtension;
 class WebGLSharedObject;
-class WebGLRenderingContext;
+class WebGLRenderingContextBase;
 
 typedef int ExceptionCode;
 
@@ -48,15 +48,15 @@ public:
     static PassRefPtr<WebGLContextGroup> create();
     ~WebGLContextGroup();
 
-    void addContext(WebGLRenderingContext*);
-    void removeContext(WebGLRenderingContext*);
+    void addContext(WebGLRenderingContextBase*);
+    void removeContext(WebGLRenderingContextBase*);
 
     void addObject(WebGLSharedObject*);
     void removeObject(WebGLSharedObject*);
 
     blink::WebGraphicsContext3D* getAWebGraphicsContext3D();
 
-    void loseContextGroup(WebGLRenderingContext::LostContextMode);
+    void loseContextGroup(WebGLRenderingContextBase::LostContextMode);
 
   private:
     friend class WebGLObject;
@@ -65,7 +65,7 @@ public:
 
     void detachAndRemoveAllObjects();
 
-    HashSet<WebGLRenderingContext*> m_contexts;
+    HashSet<WebGLRenderingContextBase*> m_contexts;
     HashSet<WebGLSharedObject*> m_groupObjects;
 };