Moved the majority of WebGL functionality into WebGLRenderingContextBase

Source/core/html/canvas/WebGLFramebuffer.cpp

Index: Source/core/html/canvas/WebGLFramebuffer.cpp
diff --git a/Source/core/html/canvas/WebGLFramebuffer.cpp b/Source/core/html/canvas/WebGLFramebuffer.cpp
index ea0352a4f4f458d81e0021dd91a5b37452172900..24134fbd8ede23c38ad9776a118f5cf2036535aa 100644
--- a/Source/core/html/canvas/WebGLFramebuffer.cpp
+++ b/Source/core/html/canvas/WebGLFramebuffer.cpp
@@ -27,7 +27,7 @@
 
 #include "core/html/canvas/WebGLFramebuffer.h"
 
-#include "core/html/canvas/WebGLRenderingContext.h"
+#include "core/html/canvas/WebGLRenderingContextBase.h"
 #include "core/platform/NotImplemented.h"
 #include "core/platform/graphics/Extensions3D.h"
 
@@ -278,12 +278,12 @@ WebGLFramebuffer::WebGLAttachment::~WebGLAttachment()
 {
 }
 
-PassRefPtr<WebGLFramebuffer> WebGLFramebuffer::create(WebGLRenderingContext* ctx)
+PassRefPtr<WebGLFramebuffer> WebGLFramebuffer::create(WebGLRenderingContextBase* ctx)
 {
     return adoptRef(new WebGLFramebuffer(ctx));
 }
 
-WebGLFramebuffer::WebGLFramebuffer(WebGLRenderingContext* ctx)
+WebGLFramebuffer::WebGLFramebuffer(WebGLRenderingContextBase* ctx)
     : WebGLContextObject(ctx)
     , m_hasEverBeenBound(false)
 {