The plain Makefile was using -Wall, but the gyp build wasn't.  This CL turns on
-Wall -Wextra and -Wno-unused in common.gypi.  This revealed a lot of warnings
(and some actual bugs), all of which I fixed here.  This is pretty mindless
stuff for the most part (order of intialization, missing initializers, && within
||, etc), but will allow us to build cleanly with -Wall and -Wextra (and
-Werror, if we so choose).

I put defaults into switches that were missing cases.  I could put in the actual
missing enums instead if that's desired.  I could also assert on missing enums
instead of break, if that's desired.  I wasn't sure how to test the stuff in
"animator", so that should be looked at a bit more closely.

Review URL:  http://codereview.appspot.com/4547055/



git-svn-id: http://skia.googlecode.com/svn/trunk@1386 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/animator/SkScript.cpp b/src/animator/SkScript.cpp
index f81147d..efb89a58 100644
--- a/src/animator/SkScript.cpp
+++ b/src/animator/SkScript.cpp
@@ -305,8 +305,8 @@
             } while (true);
             signed char topPrecedence = gPrecedence[compare];
             SkASSERT(topPrecedence != -1);
-            if (topPrecedence > precedence || topPrecedence == precedence && 
-                    gOpAttributes[op].fLeftType == kNoType) {
+            if (topPrecedence > precedence || (topPrecedence == precedence && 
+                    gOpAttributes[op].fLeftType == kNoType)) {
                 break;
             }
             if (processOp() == false)