content/shell/renderer/layout_test/leak_detector.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_SHELL_RENDERER_LAYOUT_TEST_LEAK_DETECTOR_H_
   6 #define CONTENT_SHELL_RENDERER_LAYOUT_TEST_LEAK_DETECTOR_H_
   7
   8 #include "base/basictypes.h"
   9 #include "content/shell/common/leak_detection_result.h"
  10 #include "third_party/WebKit/public/web/WebLeakDetector.h"
  11
  12 namespace blink {
  13 class WebLocalFrame;
  14 }  // namespace blink
  15
  16 namespace content {
  17
  18 class BlinkTestRunner;
  19
  20 // LeakDetector counts DOM objects and compare them between two pages.
  21 class LeakDetector : public blink::WebLeakDetectorClient {
  22  public:
  23   explicit LeakDetector(BlinkTestRunner* test_runner);
  24   virtual ~LeakDetector();
  25
  26   // Counts DOM objects, compare the previous status and returns the result of
  27   // leak detection. It is assumed that this method is always called when a
  28   // specific page, like about:blank is loaded to compare the previous
  29   // circumstance of DOM objects. If the number of objects increses, there
  30   // should be a leak.
  31   void TryLeakDetection(blink::WebLocalFrame* frame);
  32
  33   // WebLeakDetectorClient:
  34   virtual void onLeakDetectionComplete(const Result& result) override;
  35
  36  private:
  37   BlinkTestRunner* test_runner_;
  38   scoped_ptr<blink::WebLeakDetector> web_leak_detector_;
  39   blink::WebLeakDetectorClient::Result previous_result_;
  40
  41   DISALLOW_COPY_AND_ASSIGN(LeakDetector);
  42 };
  43
  44 }  // namespace content
  45
  46 #endif  // CONTENT_SHELL_RENDERER_LAYOUT_TEST_LEAK_DETECTOR_H_