In SkGPipe, set a limit on the amount of flattenables cached.

Also fix a type in gmmain.

Review URL: https://codereview.appspot.com/6351061

git-svn-id: http://skia.googlecode.com/svn/trunk@4473 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gm/gmmain.cpp b/gm/gmmain.cpp
index b78fb9e..a360c47 100644
--- a/gm/gmmain.cpp
+++ b/gm/gmmain.cpp
@@ -683,7 +683,7 @@
                                                      gPipeWritingFlagCombos[i].flags);
         invokeGM(gm, pipeCanvas);
         writer.endRecording();
-        SkString string("-pipe");
+        SkString string("-tiled pipe");
         string.append(gPipeWritingFlagCombos[i].name);
         errors |= handle_test_results(gm, gRec, NULL, NULL, diffPath,
                                       string.c_str(), bitmap, NULL, &comparisonBitmap);