Update mojo sdk to rev e7270700d671fa8e458b4d8c9e47f7bcfb65da0b

third_party/mojo/src/mojo/public/tools/bindings/pylib/mojom/generate/generator.py

Index: third_party/mojo/src/mojo/public/tools/bindings/pylib/mojom/generate/generator.py
diff --git a/third_party/mojo/src/mojo/public/tools/bindings/pylib/mojom/generate/generator.py b/third_party/mojo/src/mojo/public/tools/bindings/pylib/mojom/generate/generator.py
index 9c2763ddd10d3d12884261b08590cb78b01f817f..666ef439fa52eb8a1365121008270d16092f2a88 100644
--- a/third_party/mojo/src/mojo/public/tools/bindings/pylib/mojom/generate/generator.py
+++ b/third_party/mojo/src/mojo/public/tools/bindings/pylib/mojom/generate/generator.py
@@ -56,6 +56,9 @@ class Generator(object):
   def GetStructs(self):
     return map(partial(self._AddStructComputedData, True), self.module.structs)
 
+  def GetUnions(self):
+    return map(self._AddUnionComputedData, self.module.unions)
+
   def GetInterfaces(self):
     return map(self._AddInterfaceComputedData, self.module.interfaces)
 
@@ -91,6 +94,17 @@ class Generator(object):
     struct.exported = exported
     return struct
 
+  def _AddUnionComputedData(self, union):
+    """Adds computed data to the given union. The data is computed once and
+    used repeatedly in the generation process."""
+    ordinal = 0
+    for field in union.fields:
+      if field.ordinal is not None:
+        ordinal = field.ordinal
+      field.ordinal = ordinal
+      ordinal += 1
+    return union
+
   def _AddInterfaceComputedData(self, interface):
     """Adds computed data to the given interface. The data is computed once and
     used repeatedly in the generation process."""