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/src/gpu/effects/GrPorterDuffXferProcessor.cpp b/src/gpu/effects/GrPorterDuffXferProcessor.cpp
index 7f804bb..f51e94b 100644
--- a/src/gpu/effects/GrPorterDuffXferProcessor.cpp
+++ b/src/gpu/effects/GrPorterDuffXferProcessor.cpp
@@ -439,7 +439,7 @@
         b->add32(xp.getBlendFormula().fPrimaryOutputType |
                  (xp.getBlendFormula().fSecondaryOutputType << 3));
         GR_STATIC_ASSERT(BlendFormula::kLast_OutputType < 8);
-    };
+    }
 
 private:
     void emitOutputsForBlendState(const EmitArgs& args) override {
@@ -641,7 +641,7 @@
                                  args.fInputCoverage);
     }
 
-    void onSetData(const GrGLSLProgramDataManager&, const GrXferProcessor&) override {};
+    void onSetData(const GrGLSLProgramDataManager&, const GrXferProcessor&) override {}
 
     typedef GrGLSLXferProcessor INHERITED;
 };