Add SkDEBUGFAIL to clean up use of SkASSERT(!"text");
catch a couple of latent SkASSERT("text") bugs.

http://codereview.appspot.com/5504090/



git-svn-id: http://skia.googlecode.com/svn/trunk@2926 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/core/SkBlitter.cpp b/src/core/SkBlitter.cpp
index 8e93ef1..6d2d512 100644
--- a/src/core/SkBlitter.cpp
+++ b/src/core/SkBlitter.cpp
@@ -24,12 +24,12 @@
 }
 
 void SkBlitter::blitH(int x, int y, int width) {
-    SkASSERT(!"unimplemented");
+    SkDEBUGFAIL("unimplemented");
 }
 
 void SkBlitter::blitAntiH(int x, int y, const SkAlpha antialias[],
                           const int16_t runs[]) {
-    SkASSERT(!"unimplemented");
+    SkDEBUGFAIL("unimplemented");
 }
 
 void SkBlitter::blitV(int x, int y, int height, SkAlpha alpha) {
@@ -942,7 +942,7 @@
             break;
 
         default:
-            SkASSERT(!"unsupported device config");
+            SkDEBUGFAIL("unsupported device config");
             SK_PLACEMENT_NEW(blitter, SkNullBlitter, storage, storageSize);
             break;
     }