Implement WEBGL_shared_resources

Source/core/html/canvas/WebGLProgram.h

Index: Source/core/html/canvas/WebGLProgram.h
diff --git a/Source/core/html/canvas/WebGLProgram.h b/Source/core/html/canvas/WebGLProgram.h
index 7356cac4ece6703167d07c58174371ac118ab636..b343e93107b5e41f7760c6a1cd71961067629ffc 100644
--- a/Source/core/html/canvas/WebGLProgram.h
+++ b/Source/core/html/canvas/WebGLProgram.h
@@ -41,13 +41,13 @@ public:
 
     static PassRefPtr<WebGLProgram> create(WebGLRenderingContext*);
 
-    unsigned numActiveAttribLocations();
-    GC3Dint getActiveAttribLocation(GC3Duint index);
+    unsigned numActiveAttribLocations(WebGLRenderingContext*);
+    GC3Dint getActiveAttribLocation(WebGLRenderingContext*, GC3Duint index);
 
-    bool isUsingVertexAttrib0();
+    bool isUsingVertexAttrib0(WebGLRenderingContext*);
 
-    bool getLinkStatus();
-    void setLinkStatus(bool);
+    bool getLinkStatus(WebGLRenderingContext*);
+    void setLinkStatus(WebGLRenderingContext*, bool);
 
     unsigned getLinkCount() const { return m_linkCount; }
 
@@ -70,7 +70,7 @@ private:
     virtual bool isProgram() const { return true; }
 
     void cacheActiveAttribLocations(GraphicsContext3D*);
-    void cacheInfoIfNeeded();
+    void cacheInfoIfNeeded(WebGLRenderingContext*);
 
     Vector<GC3Dint> m_activeAttribLocations;