fix warnings on Mac in experimental

Fix these class of warnings:
- unused functions
- unused locals
- sign mismatch
- missing function prototypes
- missing newline at end of file
- 64 to 32 bit truncation

The changes prefer to link in dead code in the debug build
with 'if (false)' than to comment it out, but trivial cases
are commented out or sometimes deleted if it appears to be
a copy/paste error.
Review URL: https://codereview.appspot.com/6307044

git-svn-id: http://skia.googlecode.com/svn/trunk@4187 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/experimental/Debugger/SkDebugDumper.h b/experimental/Debugger/SkDebugDumper.h
index 35b0b23..fdc7e0f 100644
--- a/experimental/Debugger/SkDebugDumper.h
+++ b/experimental/Debugger/SkDebugDumper.h
@@ -35,4 +35,4 @@
     
     typedef SkDumpCanvas::Dumper INHERITED;
 };
-#endif
\ No newline at end of file
+#endif