Remove unused helper function in WebGLRenderingContextBase

third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.h

Index: third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.h
diff --git a/third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.h b/third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.h
index 119e746894a5efd1cbe06f65d0cc286ffc8899dc..485311932d18c6d1d3068cbcd5540ad712603b79 100644
--- a/third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.h
+++ b/third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.h
@@ -646,10 +646,6 @@ class MODULES_EXPORT WebGLRenderingContextBase : public CanvasRenderingContext,
   // Query if depth_stencil buffer is supported.
   bool isDepthStencilSupported() { return m_isDepthStencilSupported; }
 
-  // Helper to return the size in bytes of OpenGL data types
-  // like GL_FLOAT, GL_INT, etc.
-  unsigned sizeInBytes(GLenum type) const;
-
   // Check if each enabled vertex attribute is bound to a buffer.
   bool validateRenderingState(const char*);