Fix debugger's SaveAs functionality

src/utils/debugger/SkDebugCanvas.cpp

 
 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkColorPriv.h"
@@ skipping 43 matching lines @@
     SkSafeUnref(fOverdrawFilter);
     SkSafeUnref(fTexOverrideFilter);
 }
 
 void SkDebugCanvas::addDrawCommand(SkDrawCommand* command) {
     command->setOffset(this->getOpID());
     fCommandVector.push(command);
 }
 
 void SkDebugCanvas::draw(SkCanvas* canvas) {
+    fDrawNeedsReset = true;
+
     if (!fCommandVector.isEmpty()) {
         this->drawTo(canvas, fCommandVector.count() - 1);
     }
 }
 
 void SkDebugCanvas::applyUserTransform(SkCanvas* canvas) {
     canvas->concat(fUserMatrix);
 }
 
 int SkDebugCanvas::getCommandAtPoint(int x, int y, int index) {
@@ skipping 657 matching lines @@
 }
 
 bool SkDebugCanvas::lastClipStackData(const SkPath& devPath) {
     if (fCalledAddStackData) {
         fClipStackData.appendf("<br>");
         addPathData(devPath, "pathOut");
         return true;
     }
     return false;
 }