Remove stray semicolons.

Turns out function declarations don't end in semicolons...

BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2720

No public API changes.
TBR=reed@google.com

Change-Id: I72b56d52e1ff7fa6e89c295b0de8c46599791ebb
Reviewed-on: https://skia-review.googlesource.com/2720
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
diff --git a/tools/gpu/gl/debug/GrBufferObj.h b/tools/gpu/gl/debug/GrBufferObj.h
index 96aef6e..c91606d 100644
--- a/tools/gpu/gl/debug/GrBufferObj.h
+++ b/tools/gpu/gl/debug/GrBufferObj.h
@@ -14,7 +14,7 @@
 
 ////////////////////////////////////////////////////////////////////////////////
 class GrBufferObj : public GrFakeRefObj {
-    GR_DEFINE_CREATOR(GrBufferObj);
+    GR_DEFINE_CREATOR(GrBufferObj)
 
 public:
     GrBufferObj()