fix warnings on Mac in gm

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/6305046

git-svn-id: http://skia.googlecode.com/svn/trunk@4185 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 1 insertions, 0 deletions

diff --git a/gm/pathreverse.cpp b/gm/pathreverse.cpp
index fc8028eb08..3f860d5a91 100644
--- a/gm/pathreverse.cpp
+++ b/gm/pathreverse.cpp
@@ -78,6 +78,7 @@ protected:
     }
 
     virtual void onDraw(SkCanvas* canvas) {
+        if (false) test_rev(canvas); // avoid bit rot, suppress warning
         SkRect r = { 10, 10, 100, 60 };
         
         SkPath path;