More regular Platform implementations in unit tests (reland.)

third_party/WebKit/Source/platform/testing/TestingPlatformSupport.h

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef TestingPlatformSupport_h
 #define TestingPlatformSupport_h
 
+#include "platform/PlatformExport.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebDiscardableMemory.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
+class WebCompositorSupport;
+class WebThread;
+
 class TestingDiscardableMemory : public WebDiscardableMemory {
 public:
     explicit TestingDiscardableMemory(size_t);
     ~TestingDiscardableMemory() override;
 
     // WebDiscardableMemory:
     bool lock() override;
     void* data() override;
     void unlock() override;
     WebMemoryAllocatorDump* createMemoryAllocatorDump(const WebString& name, WebProcessMemoryDump*) const override;
 
 private:
     Vector<char> m_data;
     bool m_isLocked;
 };
 
 class TestingPlatformSupport : public Platform {
 public:
     struct Config {
         Config()
             : hasDiscardableMemorySupport(false)
             , compositorSupport(nullptr) { }
 
         bool hasDiscardableMemorySupport;
         WebCompositorSupport* compositorSupport;
     };
 
+    TestingPlatformSupport();
     explicit TestingPlatformSupport(const Config&);
 
     ~TestingPlatformSupport() override;
 
     // Platform:
     WebDiscardableMemory* allocateAndLockDiscardableMemory(size_t bytes) override;
     void cryptographicallyRandomValues(unsigned char* buffer, size_t length) override;
     const unsigned char* getTraceCategoryEnabledFlag(const char* categoryName) override;
     WebString defaultLocale() override;
     WebCompositorSupport* compositorSupport() override;
+    WebThread* currentThread() override;
 
-private:
+protected:
     const Config m_config;
     Platform* const m_oldPlatform;
 };
 
 } // namespace blink
 
 #endif // TestingPlatformSupport_h