Change DebugCanvas API to not encourage memory leaks

src/utils/debugger/SkDebugCanvas.h

Index: src/utils/debugger/SkDebugCanvas.h
diff --git a/src/utils/debugger/SkDebugCanvas.h b/src/utils/debugger/SkDebugCanvas.h
index 18f4c8d71336a4c22f648f13e546fe3bad66d07e..a526525f4542d1b1190a57dcbc07e08db88ea816 100644
--- a/src/utils/debugger/SkDebugCanvas.h
+++ b/src/utils/debugger/SkDebugCanvas.h
@@ -123,16 +123,6 @@ public:
     SkTDArray<SkDrawCommand*>& getDrawCommands();
 
     /**
-     * Returns the string vector of draw commands
-     */
-    SkTArray<SkString>* getDrawCommandsAsStrings() const;
-
-    /**
-     * Returns an array containing an offset (in the SkPicture) for each command
-     */
-    SkTDArray<size_t>* getDrawCommandOffsets() const;
-
-    /**
         Returns length of draw command vector.
      */
     int getSize() const {