Revert of Implement webview.captureVisibleRegion()

extensions/browser/api/web_contents_capture_client.h

Index: extensions/browser/api/web_contents_capture_client.h
diff --git a/extensions/browser/api/web_contents_capture_client.h b/extensions/browser/api/web_contents_capture_client.h
deleted file mode 100644
index 4107ee4eded91be3e51cace8a75ad81a78ed93a4..0000000000000000000000000000000000000000
--- a/extensions/browser/api/web_contents_capture_client.h
+++ /dev/null
@@ -1,58 +0,0 @@
-// 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 EXTENSIONS_BROWSER_API_WEB_CONTENTS_CAPTURE_CLIENT_H_
-#define EXTENSIONS_BROWSER_API_WEB_CONTENTS_CAPTURE_CLIENT_H_
-
-#include "base/macros.h"
-#include "content/public/browser/readback_types.h"
-#include "extensions/browser/extension_function.h"
-#include "extensions/common/api/extension_types.h"
-
-class SkBitmap;
-
-namespace content {
-class WebContents;
-}
-
-namespace extensions {
-
-// Base class for capturing visible area of a WebContents.
-// This is used by both webview.captureVisibleRegion and tabs.captureVisibleTab.
-class WebContentsCaptureClient {
- public:
-  WebContentsCaptureClient() {}
-
- protected:
-  virtual ~WebContentsCaptureClient() {}
-
-  virtual bool IsScreenshotEnabled() = 0;
-
-  enum FailureReason {
-    FAILURE_REASON_UNKNOWN,
-    FAILURE_REASON_ENCODING_FAILED,
-    FAILURE_REASON_VIEW_INVISIBLE
-  };
-  bool CaptureAsync(content::WebContents* web_contents,
-                    const api::extension_types::ImageDetails* image_detail,
-                    const content::ReadbackRequestCallback callback);
-  bool EncodeBitmap(const SkBitmap& bitmap, std::string* base64_result);
-  virtual void OnCaptureFailure(FailureReason reason) = 0;
-  virtual void OnCaptureSuccess(const SkBitmap& bitmap) = 0;
-  void CopyFromBackingStoreComplete(const SkBitmap& bitmap,
-                                    content::ReadbackResponse response);
-
- private:
-  // The format (JPEG vs PNG) of the resulting image.  Set in RunAsync().
-  api::extension_types::ImageFormat image_format_;
-
-  // Quality setting to use when encoding jpegs.  Set in RunAsync().
-  int image_quality_;
-
-  DISALLOW_COPY_AND_ASSIGN(WebContentsCaptureClient);
-};
-
-}  // namespace extensions
-
-#endif  // EXTENSIONS_BROWSER_API_WEB_CONTENTS_CAPTURE_CLIENT_H_