Add low blur and AAClip options to picture bench.

Copy the settings instead of pointing to the
original set on the stack.
Review URL: https://codereview.appspot.com/6818103

git-svn-id: http://skia.googlecode.com/svn/trunk@6330 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tools/bench_pictures_main.cpp b/tools/bench_pictures_main.cpp
index 569a0a5..acbe747 100644
--- a/tools/bench_pictures_main.cpp
+++ b/tools/bench_pictures_main.cpp
@@ -49,8 +49,10 @@
     "verticalText",
     "genA8FromLCD",
     "blur",
+    "lowBlur",
     "hinting",
     "slightHinting",
+    "AAClip",
 };
 
 static const size_t kFilterFlagsCount = sizeof(gFilterFlags) / sizeof(gFilterFlags[0]);
@@ -194,10 +196,11 @@
 "Set the number of times to repeat each test."
 " Default is %i.\n", DEFAULT_REPEATS);
     SkDebugf(
-"     --filter type:flag : ");
-    SkDebugf(
-"Enable canvas filtering to disable a paint flag,\n"
-"                     disable blur, or use less hinting.\n");
+"     --filter type:flag : Enable canvas filtering to disable a paint flag,\n"
+"                     use no blur or low quality blur, or use no hinting or\n"
+"                     slight hinting. For all flags except AAClip, specify the\n"
+"                     type of primitive to effect, or choose all. for AAClip\n"
+"                     alone, the filter affects all clips independent of type.\n");
 }
 
 SkBenchLogger gLogger;