Adds imageWriterPrivate support for Windows

chrome/browser/extensions/api/image_writer_private/test_utils.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_IMAGE_WRITER_PRIVATE_TEST_UTILS_H_
 #define CHROME_BROWSER_EXTENSIONS_API_IMAGE_WRITER_PRIVATE_TEST_UTILS_H_
 
 #include "base/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "chrome/browser/extensions/api/image_writer_private/operation_manager.h"
 #include "content/public/test/test_browser_thread_bundle.h"
+#include "content/public/test/test_utils.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace extensions {
 namespace image_writer {
 
 const char kDummyExtensionId[] = "DummyExtension";
 
 // Default file size to use in tests.  Currently 32kB.
 const int kTestFileSize = 32 * 1024;
@@ skipping 15 matching lines @@
   // Callback for completion events.
   MOCK_METHOD1(OnComplete, void(const std::string& extension_id));
 
   // Callback for error events.
   MOCK_METHOD4(OnError, void(const ExtensionId& extension_id,
                              image_writer_api::Stage stage,
                              int progress,
                              const std::string& error_message));
 };
 
+// A specialized MockOperationManager that will call a quit closure when the
+// operation completes or errors.  This is useful because when using other
+// processes the message queue may empty and so we need to wait for a response
+// instead of running until idle.
+class QuittingMockManager : public MockOperationManager {
+ public:
+  explicit QuittingMockManager(const base::Closure& quit_closure);
+
+  virtual void OnComplete(const ExtensionId& extension_id);
+  virtual void OnError(const ExtensionId& extension_id,
+                       image_writer_api::Stage stage,
+                       int progress,
+                       const std::string& error_message);
+
+ private:
+  base::Closure quit_closure_;
+};
+
 // Base class for unit tests that manages creating image and device files.
 class ImageWriterUnitTestBase : public testing::Test {
  public:
   ImageWriterUnitTestBase();
   virtual ~ImageWriterUnitTestBase();
 
  protected:
   virtual void SetUp() OVERRIDE;
 
   virtual void TearDown() OVERRIDE;
 
-  // Compare the image and device files, returning true if they are the same,
-  // false if different.
-  bool CompareImageAndDevice();
+  // Verifies that the data in image_path was written to the file at
+  // device_path.  This is different from base::ContentsEqual because the device
+  // may be larger than the image.
+  bool ImageWrittenToDevice(const base::FilePath& image_path,
+                            const base::FilePath& device_path);
 
   base::ScopedTempDir temp_dir_;
   base::FilePath test_image_path_;
   base::FilePath test_device_path_;
 
  private:
   // Fills |file| with |length| bytes of |pattern|, overwriting any existing
   // data.
   bool FillFile(const base::FilePath& file,
                 const int pattern,
                 const int length);
 
   content::TestBrowserThreadBundle thread_bundle_;
+  content::InProcessUtilityThreadHelper utility_thread_helper_;
 };
 
 }  // namespace image_writer
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_IMAGE_WRITER_PRIVATE_TEST_UTILS_H_