Moved the majority of WebGL functionality into WebGLRenderingContextBase

Source/core/html/canvas/OESTextureFloat.h

Index: Source/core/html/canvas/OESTextureFloat.h
diff --git a/Source/core/html/canvas/OESTextureFloat.h b/Source/core/html/canvas/OESTextureFloat.h
index 15322a9deaf63fc9ff76e51e2affa58e150243c1..6cba385b32b92efb4fcbe1eb679b05b5ecae2fe2 100644
--- a/Source/core/html/canvas/OESTextureFloat.h
+++ b/Source/core/html/canvas/OESTextureFloat.h
@@ -34,15 +34,15 @@ namespace WebCore {
 
 class OESTextureFloat : public WebGLExtension, public ScriptWrappable {
 public:
-    static PassRefPtr<OESTextureFloat> create(WebGLRenderingContext*);
-    static bool supported(WebGLRenderingContext*);
+    static PassRefPtr<OESTextureFloat> create(WebGLRenderingContextBase*);
+    static bool supported(WebGLRenderingContextBase*);
     static const char* getExtensionName();
 
     virtual ~OESTextureFloat();
-    virtual ExtensionName getName() const;
+    virtual WebGLExtensionName getName() const;
 
 private:
-    OESTextureFloat(WebGLRenderingContext*);
+    OESTextureFloat(WebGLRenderingContextBase*);
 };
 
 } // namespace WebCore