Remove ScopedComPtr::QueryFrom()

base/win/scoped_comptr.h

Index: base/win/scoped_comptr.h
diff --git a/base/win/scoped_comptr.h b/base/win/scoped_comptr.h
index 8d3c93150789b4d4cf72ae58408e922f9cc891c3..68c99e02d01adc9303f4dc96911c0ffb13fd06e3 100644
--- a/base/win/scoped_comptr.h
+++ b/base/win/scoped_comptr.h
@@ -116,13 +116,6 @@ class ScopedComPtr {
     return ptr_->QueryInterface(iid, obj);
   }
 
-  // Queries |other| for the interface this object wraps and returns the
-  // error code from the other->QueryInterface operation.
-  HRESULT QueryFrom(IUnknown* object) {
-    DCHECK(object);
-    return object->QueryInterface(IID_PPV_ARGS(GetAddressOf()));
-  }
-
   // Convenience wrapper around CoCreateInstance
   HRESULT CreateInstance(const CLSID& clsid,
                          IUnknown* outer = nullptr,