diff --git a/ui/color/color_set.cc b/ui/color/color_set.cc
index 56564d7..2798a3c 100644
--- a/ui/color/color_set.cc
+++ b/ui/color/color_set.cc
@@ -11,7 +11,7 @@ ColorSet::ColorSet(ColorSetId id, ColorMap&& colors)
 
 ColorSet::ColorSet(ColorSet&&) noexcept = default;
 
-ColorSet& ColorSet::operator=(ColorSet&&) noexcept = default;
+ColorSet& ColorSet::operator=(ColorSet&&) = default;
 
 ColorSet::~ColorSet() = default;
 
diff --git a/third_party/blink/public/platform/cross_variant_mojo_util.h b/third_party/blink/public/platform/cross_variant_mojo_util.h
index dee0b95..0c83580 100644
--- a/third_party/blink/public/platform/cross_variant_mojo_util.h
+++ b/third_party/blink/public/platform/cross_variant_mojo_util.h
@@ -124,7 +124,7 @@ class CrossVariantMojoAssociatedReceiver {
   ~CrossVariantMojoAssociatedReceiver() = default;
 
   CrossVariantMojoAssociatedReceiver(
-      CrossVariantMojoAssociatedReceiver&&) noexcept = default;
+      CrossVariantMojoAssociatedReceiver&&) = default;
   CrossVariantMojoAssociatedReceiver& operator=(
       CrossVariantMojoAssociatedReceiver&&) noexcept = default;
 
@@ -155,7 +155,7 @@ class CrossVariantMojoAssociatedRemote {
   ~CrossVariantMojoAssociatedRemote() = default;
 
   CrossVariantMojoAssociatedRemote(
-      CrossVariantMojoAssociatedRemote&&) noexcept = default;
+      CrossVariantMojoAssociatedRemote&&) = default;
   CrossVariantMojoAssociatedRemote& operator=(
       CrossVariantMojoAssociatedRemote&&) noexcept = default;