Remove getError() and synthesizeGLError() from WebGraphicsContext3D.

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

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 736 matching lines @@
                 m_drawingBuffer->restoreFramebufferBindings();
         }
 
     private:
         DrawingBuffer* m_drawingBuffer;
         Member<WebGLFramebuffer> m_readFramebufferBinding;
     };
 
     // Errors raised by synthesizeGLError() while the context is lost.
     Vector<GLenum> m_lostContextErrors;
+    // Other errors raised by synthesizeGLError().
+    Vector<GLenum> m_syntheticErrors;
 
     bool m_isWebGL2FormatsTypesAdded;
     bool m_isWebGL2InternalFormatsCopyTexImageAdded;
     bool m_isOESTextureFloatFormatsTypesAdded;
     bool m_isOESTextureHalfFloatFormatsTypesAdded;
     bool m_isWebGLDepthTextureFormatsTypesAdded;
     bool m_isEXTsRGBFormatsTypesAdded;
 
     std::set<GLenum> m_supportedInternalFormats;
     std::set<GLenum> m_supportedInternalFormatsCopyTexImage;
@@ skipping 335 matching lines @@
 #endif
 };
 
 DEFINE_TYPE_CASTS(WebGLRenderingContextBase, CanvasRenderingContext, context, context->is3d(), context.is3d());
 
 } // namespace blink
 
 WTF_ALLOW_MOVE_INIT_AND_COMPARE_WITH_MEM_FUNCTIONS(blink::WebGLRenderingContextBase::TextureUnitState);
 
 #endif // WebGLRenderingContextBase_h