Moved the majority of WebGL functionality into WebGLRenderingContextBase

Source/core/html/canvas/WebGLContextGroup.cpp

Index: Source/core/html/canvas/WebGLContextGroup.cpp
diff --git a/Source/core/html/canvas/WebGLContextGroup.cpp b/Source/core/html/canvas/WebGLContextGroup.cpp
index 46650a6e29205de66c7c84e4b19e1d67f846b9a2..b020d29e142265ffdb342236c50cae4107ba2cb8 100644
--- a/Source/core/html/canvas/WebGLContextGroup.cpp
+++ b/Source/core/html/canvas/WebGLContextGroup.cpp
@@ -27,7 +27,7 @@
 
 #include "core/html/canvas/WebGLContextGroup.h"
 
-#include "core/html/canvas/WebGLRenderingContext.h"
+#include "core/html/canvas/WebGLRenderingContextBase.h"
 #include "core/html/canvas/WebGLSharedObject.h"
 
 namespace WebCore {
@@ -50,16 +50,16 @@ WebGLContextGroup::~WebGLContextGroup()
 GraphicsContext3D* WebGLContextGroup::getAGraphicsContext3D()
 {
     ASSERT(!m_contexts.isEmpty());
-    HashSet<WebGLRenderingContext*>::iterator it = m_contexts.begin();
+    HashSet<WebGLRenderingContextBase*>::iterator it = m_contexts.begin();
     return (*it)->graphicsContext3D();
 }
 
-void WebGLContextGroup::addContext(WebGLRenderingContext* context)
+void WebGLContextGroup::addContext(WebGLRenderingContextBase* context)
 {
     m_contexts.add(context);
 }
 
-void WebGLContextGroup::removeContext(WebGLRenderingContext* context)
+void WebGLContextGroup::removeContext(WebGLRenderingContextBase* context)
 {
     // We must call detachAndRemoveAllObjects before removing the last context.
     if (m_contexts.size() == 1 && m_contexts.contains(context))
@@ -86,13 +86,13 @@ void WebGLContextGroup::detachAndRemoveAllObjects()
     }
 }
 
-void WebGLContextGroup::loseContextGroup(WebGLRenderingContext::LostContextMode mode)
+void WebGLContextGroup::loseContextGroup(WebGLRenderingContextBase::LostContextMode mode)
 {
     // Detach must happen before loseContextImpl, which destroys the GraphicsContext3D
     // and prevents groupObjects from being properly deleted.
     detachAndRemoveAllObjects();
 
-    for (HashSet<WebGLRenderingContext*>::iterator it = m_contexts.begin(); it != m_contexts.end(); ++it)
+    for (HashSet<WebGLRenderingContextBase*>::iterator it = m_contexts.begin(); it != m_contexts.end(); ++it)
         (*it)->loseContextImpl(mode);
 }