Change DebugCanvas API to not encourage memory leaks

debugger/SkDebugger.h

 
 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SKDEBUGGER_H_
@@ skipping 26 matching lines @@
     void rewind();
 
     bool isCommandVisible(int index) {
         return fDebugCanvas->getDrawCommandVisibilityAt(index);
     }
 
     void setCommandVisible(int index, bool isVisible) {
         fDebugCanvas->toggleCommand(index, isVisible);
     }
 
-    SkTArray<SkString>* getDrawCommandsAsStrings() {
-        return fDebugCanvas->getDrawCommandsAsStrings();
+    void getDrawCommandsAsStrings(SkTArray<SkString>* outCommandStrings) {
+        fDebugCanvas->getDrawCommandsAsStrings(outCommandStrings);
     }
 
-    SkTDArray<size_t>* getDrawCommandOffsets() {
-        return fDebugCanvas->getDrawCommandOffsets();
+    void getDrawCommandOffsets(SkTDArray<size_t>* outCommandOffsets) {
+        fDebugCanvas->getDrawCommandOffsets(outCommandOffsets);
     }
 
     const SkTDArray<SkDrawCommand*>& getDrawCommands() const {
         return fDebugCanvas->getDrawCommands();
     }
 
     void highlightCurrentCommand(bool on) {
         fDebugCanvas->toggleFilter(on);
     }
 
@@ skipping 67 matching lines @@
 
 private:
     SkDebugCanvas* fDebugCanvas;
     SkPicture* fPicture;
 
     int fIndex;
 };
 
 
 #endif /* SKDEBUGGER_H_ */