Enable unused param checking for public includes.

include/utils/SkDeferredCanvas.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkDeferredCanvas_DEFINED
 #define SkDeferredCanvas_DEFINED
 
@@ skipping 204 matching lines @@
          *  once per flush when deferred rendering is enabled.
          */
         virtual void prepareForDraw() {}
 
         /**
          *  Called after a recording a draw command if additional memory
          *  had to be allocated for recording.
          *  @param newAllocatedStorage same value as would be returned by
          *      storageAllocatedForRecording(), for convenience.
          */
-        virtual void storageAllocatedForRecordingChanged(
-            size_t newAllocatedStorage) {}
+        virtual void storageAllocatedForRecordingChanged(size_t /*newAllocatedStorage*/) {}
 
         /**
          *  Called after pending draw commands have been flushed
          */
         virtual void flushedDrawCommands() {}
 
         /**
          *  Called after pending draw commands have been skipped, meaning
          *  that they were optimized-out because the canvas is cleared
          *  or completely overwritten by the command currently being recorded.
@@ skipping 20 matching lines @@
 
     mutable SkISize fCachedCanvasSize;
     mutable bool    fCachedCanvasSizeDirty;
 
     friend class SkDeferredCanvasTester; // for unit testing
     typedef SkCanvas INHERITED;
 };
 
 
 #endif