Deprecate SkPicture::clone().

tools/render_pictures_main.cpp

Index: tools/render_pictures_main.cpp
diff --git a/tools/render_pictures_main.cpp b/tools/render_pictures_main.cpp
index 850053cfc6f9b258469ac8ab3077f81cd378b2f8..c2c7875b282cc6cfbd8a0aa6b8a38eba0eecb678 100644
--- a/tools/render_pictures_main.cpp
+++ b/tools/render_pictures_main.cpp
@@ -26,7 +26,6 @@
 #include "picture_utils.h"
 
 // Flags used by this file, alphabetically:
-DEFINE_int32(clone, 0, "Clone the picture n times before rendering.");
 DECLARE_bool(deferImageDecoding);
 DEFINE_int32(maxComponentDiff, 256, "Maximum diff on a component, 0 - 256. Components that differ "
              "by more than this amount are considered errors, though all diffs are reported. "
@@ -186,12 +185,6 @@ static bool render_picture_internal(const SkString& inputPath, const SkString* w
         SkAutoTUnref<SkPicture> other(recorder.endRecording());
     }
 
-    for (int i = 0; i < FLAGS_clone; ++i) {
-        SkPicture* clone = picture->clone();
-        SkDELETE(picture);
-        picture = clone;
-    }
-
     SkDebugf("drawing... [%i %i] %s\n", picture->width(), picture->height(),
              inputPath.c_str());
 
@@ -424,11 +417,6 @@ int tool_main(int argc, char** argv) {
         exit(-1);
     }
 
-    if (FLAGS_clone < 0) {
-        SkDebugf("--clone must be >= 0. Was %i\n", FLAGS_clone);
-        exit(-1);
-    }
-
     if (FLAGS_writeEncodedImages) {
         if (FLAGS_writePath.isEmpty()) {
             SkDebugf("--writeEncodedImages requires --writePath\n");