Improving support for WebGL2 Query objects

Source/core/html/canvas/WebGLQuery.h

Index: Source/core/html/canvas/WebGLQuery.h
diff --git a/Source/core/html/canvas/WebGLQuery.h b/Source/core/html/canvas/WebGLQuery.h
index 59e860499571bd66b1107da3a0943a50450f03cb..5a7a824fe848f26b05f7723594ba7ebba0373055 100644
--- a/Source/core/html/canvas/WebGLQuery.h
+++ b/Source/core/html/canvas/WebGLQuery.h
@@ -19,6 +19,10 @@ public:
 
     static PassRefPtrWillBeRawPtr<WebGLQuery> create(WebGL2RenderingContextBase*);
 
+    void setTarget(GLenum);
+    GLenum getTarget() const { return m_target; }
+    bool isCompatibleTarget(GLenum);
+
 protected:
     explicit WebGLQuery(WebGL2RenderingContextBase*);
 
@@ -26,6 +30,8 @@ protected:
 
 private:
     bool isQuery() const override { return true; }
+
+    GLenum m_target;
 };
 
 } // namespace blink