Implement webview.captureVisibleRegion()

chrome/browser/extensions/api/tabs/tabs_api.h

Index: chrome/browser/extensions/api/tabs/tabs_api.h
diff --git a/chrome/browser/extensions/api/tabs/tabs_api.h b/chrome/browser/extensions/api/tabs/tabs_api.h
index b398e70c10d922a5d580e57890fb54a6e511300c..228dd33eb02d6ae25ff08fa47cc8d296638f110b 100644
--- a/chrome/browser/extensions/api/tabs/tabs_api.h
+++ b/chrome/browser/extensions/api/tabs/tabs_api.h
@@ -15,7 +15,7 @@
 #include "components/ui/zoom/zoom_controller.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
-#include "extensions/browser/api/capture_web_contents_function.h"
+#include "extensions/browser/api/capture_web_contents.h"
 #include "extensions/browser/api/execute_code_function.h"
 #include "extensions/common/extension_resource.h"
 #include "extensions/common/user_script.h"
@@ -195,21 +195,28 @@ class TabsDetectLanguageFunction : public ChromeAsyncExtensionFunction,
   content::NotificationRegistrar registrar_;
   DECLARE_EXTENSION_FUNCTION("tabs.detectLanguage", TABS_DETECTLANGUAGE)
 };
-class TabsCaptureVisibleTabFunction
-    : public extensions::CaptureWebContentsFunction {
+
+class TabsCaptureVisibleTabFunction : public extensions::CaptureWebContents,
+                                      public AsyncExtensionFunction {
  public:
   TabsCaptureVisibleTabFunction();
   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
 
+  // ExtensionFunction implementation.
+  bool HasPermission() override;
+  bool RunAsync() override;
+
  protected:
   ~TabsCaptureVisibleTabFunction() override {}
 
  private:
   ChromeExtensionFunctionDetails chrome_details_;
 
-  // extensions::CaptureWebContentsFunction:
+  content::WebContents* GetWebContentsForID(int window_id);
+
+  // extensions::CaptureWebContents:
   bool IsScreenshotEnabled() override;
-  content::WebContents* GetWebContentsForID(int id) override;
+  void OnCaptureSuccess(const SkBitmap& bitmap) override;
   void OnCaptureFailure(FailureReason reason) override;
 
   DECLARE_EXTENSION_FUNCTION("tabs.captureVisibleTab", TABS_CAPTUREVISIBLETAB)