fix warnings on Mac in src/gpu and include/gpu

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/6296044

git-svn-id: http://skia.googlecode.com/svn/trunk@4180 2bbb7eff-a529-9590-31e7-b0007b416f81

2 files changed, 2 insertions, 2 deletions

diff --git a/src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp b/src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp
index d08d6022f6..2ae8782e5c 100644
--- a/src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp
+++ b/src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp
@@ -15,7 +15,7 @@
 
 #include <dlfcn.h>
 
-void* GetProcAddress(const char* name) {
+static void* GetProcAddress(const char* name) {
     return dlsym(RTLD_DEFAULT, name);
 }
 
diff --git a/src/gpu/gl/mac/SkNativeGLContext_mac.cpp b/src/gpu/gl/mac/SkNativeGLContext_mac.cpp
index 18b36a5608..2dcf8ae09c 100644
--- a/src/gpu/gl/mac/SkNativeGLContext_mac.cpp
+++ b/src/gpu/gl/mac/SkNativeGLContext_mac.cpp
@@ -33,7 +33,7 @@ void SkNativeGLContext::destroyGLContext() {
 
 const GrGLInterface* SkNativeGLContext::createGLContext() {
     GLint major, minor;
-    AGLContext ctx;
+    // AGLContext ctx;
 
     aglGetVersion(&major, &minor);
     //SkDebugf("---- agl version %d %d\n", major, minor);