Add SkRecord::defrag().

tests/RecordTest.cpp

Index: tests/RecordTest.cpp
diff --git a/tests/RecordTest.cpp b/tests/RecordTest.cpp
index 9e02c882dbc5e74e2d994bf1c01e2560cd986501..e613b425fdc7f607d580c053bc7b028819d5c8fb 100644
--- a/tests/RecordTest.cpp
+++ b/tests/RecordTest.cpp
@@ -5,13 +5,14 @@
  * found in the LICENSE file.
  */
 
-#include "Test.h"
-
+#include "RecordTestUtils.h"
 #include "SkBitmap.h"
 #include "SkImageInfo.h"
-#include "SkShader.h"
 #include "SkRecord.h"
 #include "SkRecords.h"
+#include "SkShader.h"
+#include "Test.h"
+
 
 // Sums the area of any DrawRect command it sees.
 class AreaSummer {
@@ -76,6 +77,25 @@ DEF_TEST(Record, r) {
     REPORTER_ASSERT(r, summer.area() == 500);
 }
 
+DEF_TEST(Record_defrag, r) {
+    SkRecord record;
+    APPEND(record, SkRecords::Save);
+    APPEND(record, SkRecords::ClipRect);
+    APPEND(record, SkRecords::NoOp);
+    APPEND(record, SkRecords::DrawRect);
+    APPEND(record, SkRecords::NoOp);
+    APPEND(record, SkRecords::NoOp);
+    APPEND(record, SkRecords::Restore);
+    REPORTER_ASSERT(r, record.count() == 7);
+
+    record.defrag();
+    REPORTER_ASSERT(r, record.count() == 4);
+    assert_type<SkRecords::Save    >(r, record, 0);
+    assert_type<SkRecords::ClipRect>(r, record, 1);
+    assert_type<SkRecords::DrawRect>(r, record, 2);
+    assert_type<SkRecords::Restore >(r, record, 3);
+}
+
 #undef APPEND
 
 template <typename T>