add BitmapBench



git-svn-id: http://skia.googlecode.com/svn/trunk@83 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/bench/SkBenchmark.cpp b/bench/SkBenchmark.cpp
index 5d22b70..853afb3 100644
--- a/bench/SkBenchmark.cpp
+++ b/bench/SkBenchmark.cpp
@@ -1,6 +1,8 @@
 #include "SkBenchmark.h"
 #include "SkPaint.h"
 
+template BenchRegistry* BenchRegistry::gHead;
+
 SkBenchmark::SkBenchmark() {
     fForceAlpha = 0xFF;
     fForceAA = true;
@@ -23,4 +25,8 @@
     paint->setAntiAlias(fForceAA);
 }
 
+///////////////////////////////////////////////////////////////////////////////
 
+SkIPoint SkBenchmark::onGetSize() {
+    return SkMakeIPoint(640, 480);
+}