Moved the majority of WebGL functionality into WebGLRenderingContextBase

Source/core/html/canvas/OESTextureFloat.cpp

Index: Source/core/html/canvas/OESTextureFloat.cpp
diff --git a/Source/core/html/canvas/OESTextureFloat.cpp b/Source/core/html/canvas/OESTextureFloat.cpp
index 3d19049cabe2e72b5c1c0dbae206748cb37a2515..eb2196378b08a09637d93f4bb2fd0649c5fa5867 100644
--- a/Source/core/html/canvas/OESTextureFloat.cpp
+++ b/Source/core/html/canvas/OESTextureFloat.cpp
@@ -30,7 +30,7 @@
 
 namespace WebCore {
 
-OESTextureFloat::OESTextureFloat(WebGLRenderingContext* context)
+OESTextureFloat::OESTextureFloat(WebGLRenderingContextBase* context)
     : WebGLExtension(context)
 {
     ScriptWrappable::init(this);
@@ -41,17 +41,17 @@ OESTextureFloat::~OESTextureFloat()
 {
 }
 
-WebGLExtension::ExtensionName OESTextureFloat::getName() const
+WebGLExtensionName OESTextureFloat::getName() const
 {
     return OESTextureFloatName;
 }
 
-PassRefPtr<OESTextureFloat> OESTextureFloat::create(WebGLRenderingContext* context)
+PassRefPtr<OESTextureFloat> OESTextureFloat::create(WebGLRenderingContextBase* context)
 {
     return adoptRef(new OESTextureFloat(context));
 }
 
-bool OESTextureFloat::supported(WebGLRenderingContext* context)
+bool OESTextureFloat::supported(WebGLRenderingContextBase* context)
 {
     Extensions3D* extensions = context->graphicsContext3D()->getExtensions();
     return extensions->supports("GL_OES_texture_float");