Refactoring: get rid of the SkBenchmark void* parameter.

While I was doing massive sed-ing, I also converted every bench to use DEF_BENCH instead of registering the ugly manual way.

BUG=
R=scroggo@google.com

Review URL: https://codereview.chromium.org/23876006

git-svn-id: http://skia.googlecode.com/svn/trunk@11263 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/bench/ImageCacheBench.cpp b/bench/ImageCacheBench.cpp
index c0a2d3d..ea295fd 100644
--- a/bench/ImageCacheBench.cpp
+++ b/bench/ImageCacheBench.cpp
@@ -17,7 +17,7 @@
         CACHE_COUNT = 500
     };
 public:
-    ImageCacheBench(void* param) : INHERITED(param) , fCache(CACHE_COUNT * 100) {
+    ImageCacheBench()  : fCache(CACHE_COUNT * 100) {
         fBM.setConfig(SkBitmap::kARGB_8888_Config, DIM, DIM);
         fBM.allocPixels();
     }
@@ -56,4 +56,4 @@
 
 ///////////////////////////////////////////////////////////////////////////////
 
-DEF_BENCH( return new ImageCacheBench(p); )
+DEF_BENCH( return new ImageCacheBench(); )