Revert of Implement webview.captureVisibleRegion()

extensions/browser/api/guest_view/web_view/web_view_internal_api.cc

Index: extensions/browser/api/guest_view/web_view/web_view_internal_api.cc
diff --git a/extensions/browser/api/guest_view/web_view/web_view_internal_api.cc b/extensions/browser/api/guest_view/web_view/web_view_internal_api.cc
index 3e3a8ed5360f34a1721cd7b0433178fc61c79e01..bba531d6535a157057fb941fe521b783bf474961 100644
--- a/extensions/browser/api/guest_view/web_view/web_view_internal_api.cc
+++ b/extensions/browser/api/guest_view/web_view/web_view_internal_api.cc
@@ -259,62 +259,6 @@
   return RunAsyncSafe(guest);
 }
 
-bool WebViewInternalCaptureVisibleRegionFunction::RunAsyncSafe(
-    WebViewGuest* guest) {
-  using api::extension_types::ImageDetails;
-
-  scoped_ptr<web_view_internal::CaptureVisibleRegion::Params> params(
-      web_view_internal::CaptureVisibleRegion::Params::Create(*args_));
-  EXTENSION_FUNCTION_VALIDATE(params.get());
-
-  scoped_ptr<ImageDetails> image_details;
-  if (args_->GetSize() > 1) {
-    base::Value* spec = NULL;
-    EXTENSION_FUNCTION_VALIDATE(args_->Get(1, &spec) && spec);
-    image_details = ImageDetails::FromValue(*spec);
-  }
-
-  return CaptureAsync(guest->web_contents(), image_details.get(),
-                      base::Bind(&WebViewInternalCaptureVisibleRegionFunction::
-                                     CopyFromBackingStoreComplete,
-                                 this));
-}
-bool WebViewInternalCaptureVisibleRegionFunction::IsScreenshotEnabled() {
-  // TODO(wjmaclean): Is it ok to always return true here?
-  return true;
-}
-
-void WebViewInternalCaptureVisibleRegionFunction::OnCaptureSuccess(
-    const SkBitmap& bitmap) {
-  std::string base64_result;
-  if (!EncodeBitmap(bitmap, &base64_result)) {
-    OnCaptureFailure(FAILURE_REASON_ENCODING_FAILED);
-    return;
-  }
-
-  SetResult(new base::StringValue(base64_result));
-  SendResponse(true);
-}
-
-void WebViewInternalCaptureVisibleRegionFunction::OnCaptureFailure(
-    FailureReason reason) {
-  const char* reason_description = "internal error";
-  switch (reason) {
-    case FAILURE_REASON_UNKNOWN:
-      reason_description = "unknown error";
-      break;
-    case FAILURE_REASON_ENCODING_FAILED:
-      reason_description = "encoding failed";
-      break;
-    case FAILURE_REASON_VIEW_INVISIBLE:
-      reason_description = "view is invisible";
-      break;
-  }
-  error_ = ErrorUtils::FormatErrorMessage("Failed to capture webview: *",
-                                          reason_description);
-  SendResponse(false);
-}
-
 bool WebViewInternalNavigateFunction::RunAsyncSafe(WebViewGuest* guest) {
   scoped_ptr<web_view_internal::Navigate::Params> params(
       web_view_internal::Navigate::Params::Create(*args_));