turn bitmaps into images during recording

src/core/SkRecords.cpp

Index: src/core/SkRecords.cpp
diff --git a/src/core/SkRecords.cpp b/src/core/SkRecords.cpp
index d0a3ddbe10c9d9705ec6db77d149908ce82f974c..81dd92f9ef4d103ad9d2b6d0548f75d0ce64b0c6 100644
--- a/src/core/SkRecords.cpp
+++ b/src/core/SkRecords.cpp
@@ -9,15 +9,6 @@
 #include "SkRecords.h"
 
 namespace SkRecords {
-    ImmutableBitmap::ImmutableBitmap(const SkBitmap& bitmap) {
-        if (bitmap.isImmutable()) {
-            fBitmap = bitmap;
-        } else {
-            bitmap.copyTo(&fBitmap);
-        }
-        fBitmap.setImmutable();
-    }
-
     PreCachedPath::PreCachedPath(const SkPath& path) : SkPath(path) {
         this->updateBoundsCache();
 #if 0  // Disabled to see if we ever really race on this.  It costs time, chromium:496982.