Enable init'ed but unused var warning on windows for closer parity with mac/linux warnings.

src/opts/SkBlitRect_opts_SSE2.cpp

Index: src/opts/SkBlitRect_opts_SSE2.cpp
===================================================================
--- src/opts/SkBlitRect_opts_SSE2.cpp	(revision 8271)
+++ src/opts/SkBlitRect_opts_SSE2.cpp	(working copy)
@@ -118,7 +118,8 @@
         return;
     }
     unsigned colorA = SkGetPackedA32(color);
-    if (false && 255 == colorA) { // disabled but compilable to suppress warning
+    colorA = 255; // skip below if () for now...

[reed1, 2013/03/21 13:14:24]

This is backwards from the old code.

The old code *never* took the fast case for opaque (not sure why, perhaps a
bug?). Your new code *always* takes the fast-opaque case.

[bsalomon, 2013/03/21 13:45:29]

oh duh... fixed.

+    if (255 == colorA) {
         if (width < 31) {
             BlitRect32_OpaqueNarrow_SSE2(destination, width, height,
                                          rowBytes, color);