Add a hook for capturing a user profile photo and saving it to file and local state.

chrome/browser/chromeos/options/take_photo_dialog.cc

 // Copyright (c) 2011 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.
 
 #include "chrome/browser/chromeos/options/take_photo_dialog.h"
 
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/chromeos/login/helper.h"
 #include "chrome/common/chrome_notification_types.h"
@@ skipping 74 matching lines @@
   state->role = ui::AccessibilityTypes::ROLE_DIALOG;
 }
 
 void TakePhotoDialog::OnCapturingStarted() {
   GetDialogClientView()->ok_button()->SetEnabled(false);
 }
 
 void TakePhotoDialog::OnCapturingStopped() {
   GetDialogClientView()->ok_button()->SetEnabled(true);
   GetDialogClientView()->ok_button()->RequestFocus();
+  NotifyOnCapturingStopped();
 }
 
 void TakePhotoDialog::OnCaptureSuccess() {
   SkBitmap frame;
   camera_controller_.GetFrame(&frame);
-  if (!frame.isNull())
+  if (!frame.isNull()) {
     take_photo_view_->UpdateVideoFrame(frame);
+    NotifyOnCaptureSuccess();
+  }
 }
 
 void TakePhotoDialog::OnCaptureFailure() {
   take_photo_view_->ShowCameraError();
+  NotifyOnCaptureFailure();
+}
+
+void TakePhotoDialog::AddObserver(Observer* obs) {
+  observer_list_.AddObserver(obs);
+}
+
+void TakePhotoDialog::RemoveObserver(Observer* obs) {
+  observer_list_.RemoveObserver(obs);
+}
+
+void TakePhotoDialog::NotifyOnCaptureSuccess() {
+ FOR_EACH_OBSERVER(
+    Observer,
+    observer_list_,
+    OnCaptureSuccess(this, take_photo_view_));
+}
+
+void TakePhotoDialog::NotifyOnCaptureFailure() {
+ FOR_EACH_OBSERVER(
+    Observer,
+    observer_list_,
+    OnCaptureFailure(this, take_photo_view_));
+}
+
+void TakePhotoDialog::NotifyOnCapturingStopped() {
+ FOR_EACH_OBSERVER(
+    Observer,
+    observer_list_,
+    OnCapturingStopped(this, take_photo_view_));
 }
 
 void TakePhotoDialog::Observe(int type,
                               const NotificationSource& source,
                               const NotificationDetails& details) {
   if (type != chrome::NOTIFICATION_SCREEN_LOCK_STATE_CHANGED)
     return;
 
   bool is_screen_locked = *Details<bool>(details).ptr();
   if (is_screen_locked)
@@ skipping 14 matching lines @@
   return gfx::Size(login::kUserImageSize * 2, (login::kUserImageSize * 3 / 2));
 }
 
 void TakePhotoDialog::InitCamera() {
   take_photo_view_->ShowCameraInitializing();
   camera_controller_.Start();
 }
 
 }  // namespace chromeos