<webview>: Remove broken captureVisibleRegion code until feature is properly supported

extensions/browser/api/web_view/web_view_internal_api.h

 // Copyright 2014 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_VIEW_WEB_VIEW_INTERNAL_API_H_
 #define EXTENSIONS_BROWSER_API_WEB_VIEW_WEB_VIEW_INTERNAL_API_H_
 
 #include "extensions/browser/api/capture_web_contents_function.h"
 #include "extensions/browser/api/execute_code_function.h"
 #include "extensions/browser/extension_function.h"
@@ skipping 97 matching lines @@
 
   bool ShouldInsertCSS() const override;
 
   DECLARE_EXTENSION_FUNCTION("webViewInternal.insertCSS",
                              WEBVIEWINTERNAL_INSERTCSS)
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebViewInternalInsertCSSFunction);
 };
 
-class WebViewInternalCaptureVisibleRegionFunction
-    : public extensions::CaptureWebContentsFunction {
-  DECLARE_EXTENSION_FUNCTION("webViewInternal.captureVisibleRegion",
-                             WEBVIEWINTERNAL_CAPTUREVISIBLEREGION);
-
-  WebViewInternalCaptureVisibleRegionFunction();
-
- protected:
-  ~WebViewInternalCaptureVisibleRegionFunction() override;
-
- private:
-  // extensions::CaptureWebContentsFunction implementation.
-  bool IsScreenshotEnabled() override;
-  content::WebContents* GetWebContentsForID(int id) override;
-  void OnCaptureFailure(FailureReason reason) override;
-
-  DISALLOW_COPY_AND_ASSIGN(WebViewInternalCaptureVisibleRegionFunction);
-};
-
 class WebViewInternalSetNameFunction : public WebViewInternalExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("webViewInternal.setName",
                              WEBVIEWINTERNAL_SETNAME);
 
   WebViewInternalSetNameFunction();
 
  protected:
   ~WebViewInternalSetNameFunction() override;
 
@@ skipping 232 matching lines @@
   uint32 remove_mask_;
   // Tracks any data related or parse errors.
   bool bad_message_;
 
   DISALLOW_COPY_AND_ASSIGN(WebViewInternalClearDataFunction);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_WEB_VIEW_WEB_VIEW_INTERNAL_API_H_