Remove getError() and synthesizeGLError() from WebGraphicsContext3D.

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

Index: third_party/WebKit/Source/modules/webgl/WebGLObject.h
diff --git a/third_party/WebKit/Source/modules/webgl/WebGLObject.h b/third_party/WebKit/Source/modules/webgl/WebGLObject.h
index b581e326c8afdb0a5610d965c6bf49638bf22fb0..e10a80a27681a09654d840454645ba479a7fdf90 100644
--- a/third_party/WebKit/Source/modules/webgl/WebGLObject.h
+++ b/third_party/WebKit/Source/modules/webgl/WebGLObject.h
@@ -29,6 +29,7 @@
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "platform/graphics/GraphicsTypes3D.h"
 #include "platform/heap/Handle.h"
+#include "wtf/Assertions.h"
 #include "wtf/RefCounted.h"
 
 namespace blink {
@@ -47,11 +48,19 @@ class WebGLContextGroup;
 class WebGLRenderingContextBase;
 
 template <typename T>
-Platform3DObject objectOrZero(const T* object)
+GLuint objectOrZero(const T* object)
 {
     return object ? object->object() : 0;
 }
 
+template <typename T>
+GLuint objectNonZero(const T* object)
+{
+    GLuint result = object->object();
+    DCHECK(result);
+    return result;
+}
+
 class WebGLObject : public GarbageCollectedFinalized<WebGLObject>, public ScriptWrappable {
 public:
     virtual ~WebGLObject();