Fix occurrences of "-Wextra-semi-stmt"

Docs-Preview: https://skia.org/?cl=173761
Change-Id: Iefdb91cd28eabb4b01b7b42a4f300b0b4caf05d9
Reviewed-on: https://skia-review.googlesource.com/c/173761
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
diff --git a/src/xml/SkXMLParser.cpp b/src/xml/SkXMLParser.cpp
index 36e1ab3..8e5b554 100644
--- a/src/xml/SkXMLParser.cpp
+++ b/src/xml/SkXMLParser.cpp
@@ -86,7 +86,7 @@
     SkString fBufferedText;
 };
 
-#define HANDLER_CONTEXT(arg, name) ParsingContext* name = static_cast<ParsingContext*>(arg);
+#define HANDLER_CONTEXT(arg, name) ParsingContext* name = static_cast<ParsingContext*>(arg)
 
 void XMLCALL start_element_handler(void *data, const char* tag, const char** attributes) {
     HANDLER_CONTEXT(data, ctx);