Disable morphology benchmarks on fixed point builds.

http://codereview.appspot.com/6300082/



git-svn-id: http://skia.googlecode.com/svn/trunk@4231 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/bench/MorphologyBench.cpp b/bench/MorphologyBench.cpp
index 5f3af58..a0fde55 100644
--- a/bench/MorphologyBench.cpp
+++ b/bench/MorphologyBench.cpp
@@ -96,6 +96,10 @@
 
 static SkBenchmark* FactNone(void* p) { return new MorphologyBench(p, 0, kErode_MT); }
 
+// Fixed point can be 100x slower than float on these tests, causing
+// bench to timeout.
+#ifndef SK_SCALAR_IS_FIXED
+
 static BenchRegistry gReg00(Fact00);
 static BenchRegistry gReg01(Fact01);
 
@@ -107,3 +111,5 @@
 
 static BenchRegistry gRegNone(FactNone);
 
+#endif
+