third_party/WebKit/Source/platform/TestingPlatformSupport.h

   1 /*
   2  * Copyright (C) 2014 Google Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  *     * Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *     * Redistributions in binary form must reproduce the above
  11  * copyright notice, this list of conditions and the following disclaimer
  12  * in the documentation and/or other materials provided with the
  13  * distribution.
  14  *     * Neither the name of Google Inc. nor the names of its
  15  * contributors may be used to endorse or promote products derived from
  16  * this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #ifndef TestingPlatformSupport_h
  32 #define TestingPlatformSupport_h
  33
  34 #include "public/platform/Platform.h"
  35 #include "public/platform/WebDiscardableMemory.h"
  36 #include "wtf/Vector.h"
  37
  38 namespace blink {
  39
  40 class TestingDiscardableMemory : public WebDiscardableMemory {
  41 public:
  42     explicit TestingDiscardableMemory(size_t);
  43     ~TestingDiscardableMemory() override;
  44
  45     // WebDiscardableMemory:
  46     bool lock() override;
  47     void* data() override;
  48     void unlock() override;
  49
  50 private:
  51     Vector<char> m_data;
  52     bool m_isLocked;
  53 };
  54
  55 class TestingPlatformSupport : public Platform {
  56 public:
  57     struct Config {
  58         Config() : hasDiscardableMemorySupport(false) { }
  59
  60         bool hasDiscardableMemorySupport;
  61     };
  62
  63     explicit TestingPlatformSupport(const Config&);
  64
  65     ~TestingPlatformSupport() override;
  66
  67     // Platform:
  68     WebDiscardableMemory* allocateAndLockDiscardableMemory(size_t bytes) override;
  69     void cryptographicallyRandomValues(unsigned char* buffer, size_t length) override;
  70     const unsigned char* getTraceCategoryEnabledFlag(const char* categoryName) override;
  71     WebString defaultLocale() override;
  72
  73 private:
  74     const Config m_config;
  75     Platform* const m_oldPlatform;
  76 };
  77
  78 } // namespace blink
  79
  80 #endif // TestingPlatformSupport_h