1 files changed, 132 insertions, 0 deletions
diff --git a/chromium/extensions/shell/browser/shell_speech_recognition_manager_delegate.cc b/chromium/extensions/shell/browser/shell_speech_recognition_manager_delegate.cc
new file mode 100644
index 00000000000..c4ce068cce7
--- /dev/null
+++ b/chromium/extensions/shell/browser/shell_speech_recognition_manager_delegate.cc
@@ -0,0 +1,132 @@
+// 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.
+
+#include "extensions/shell/browser/shell_speech_recognition_manager_delegate.h"
+
+#include "base/bind.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/render_view_host.h"
+#include "content/public/browser/speech_recognition_manager.h"
+#include "content/public/browser/speech_recognition_session_context.h"
+#include "content/public/browser/web_contents.h"
+#include "extensions/browser/view_type_utils.h"
+
+using content::BrowserThread;
+using content::SpeechRecognitionManager;
+using content::WebContents;
+
+namespace extensions {
+namespace speech {
+
+ShellSpeechRecognitionManagerDelegate::ShellSpeechRecognitionManagerDelegate() {
+}
+
+ShellSpeechRecognitionManagerDelegate::
+~ShellSpeechRecognitionManagerDelegate() {
+}
+
+void ShellSpeechRecognitionManagerDelegate::OnRecognitionStart(int session_id) {
+}
+
+void ShellSpeechRecognitionManagerDelegate::OnAudioStart(int session_id) {
+}
+
+void ShellSpeechRecognitionManagerDelegate::OnEnvironmentEstimationComplete(
+    int session_id) {
+}
+
+void ShellSpeechRecognitionManagerDelegate::OnSoundStart(int session_id) {
+}
+
+void ShellSpeechRecognitionManagerDelegate::OnSoundEnd(int session_id) {
+}
+
+void ShellSpeechRecognitionManagerDelegate::OnAudioEnd(int session_id) {
+}
+
+void ShellSpeechRecognitionManagerDelegate::OnRecognitionEnd(int session_id) {
+}
+
+void ShellSpeechRecognitionManagerDelegate::OnRecognitionResults(
+    int session_id,
+    const content::SpeechRecognitionResults& result) {
+}
+
+void ShellSpeechRecognitionManagerDelegate::OnRecognitionError(
+    int session_id,
+    const content::SpeechRecognitionError& error) {
+}
+
+void ShellSpeechRecognitionManagerDelegate::OnAudioLevelsChange(
+    int session_id,
+    float volume,
+    float noise_volume) {
+}
+
+void ShellSpeechRecognitionManagerDelegate::GetDiagnosticInformation(
+    bool* can_report_metrics,
+    std::string* hardware_info) {
+}
+
+void ShellSpeechRecognitionManagerDelegate::CheckRecognitionIsAllowed(
+    int session_id,
+    base::Callback<void(bool ask_user, bool is_allowed)> callback) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+
+  const content::SpeechRecognitionSessionContext& context =
+      SpeechRecognitionManager::GetInstance()->GetSessionContext(session_id);
+
+  // Make sure that initiators (extensions/web pages) properly set the
+  // |render_process_id| field, which is needed later to retrieve the profile.
+  DCHECK_NE(context.render_process_id, 0);
+
+  BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
+                          base::Bind(&CheckRenderViewType,
+                                     callback,
+                                     context.render_process_id,
+                                     context.render_view_id));
+}
+
+content::SpeechRecognitionEventListener*
+ShellSpeechRecognitionManagerDelegate::GetEventListener() {
+  return this;
+}
+
+bool ShellSpeechRecognitionManagerDelegate::FilterProfanities(
+    int render_process_id) {
+  // TODO(zork): Determine where this preference should come from.
+  return true;
+}
+
+// static
+void ShellSpeechRecognitionManagerDelegate::CheckRenderViewType(
+    base::Callback<void(bool ask_user, bool is_allowed)> callback,
+    int render_process_id,
+    int render_view_id) {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+  content::RenderViewHost* render_view_host =
+      content::RenderViewHost::FromID(render_process_id, render_view_id);
+  bool allowed = false;
+  bool check_permission = false;
+
+  if (render_view_host) {
+    WebContents* web_contents =
+        WebContents::FromRenderViewHost(render_view_host);
+    extensions::ViewType view_type = extensions::GetViewType(web_contents);
+
+    if (view_type == extensions::VIEW_TYPE_APP_WINDOW ||
+        view_type == extensions::VIEW_TYPE_EXTENSION_BACKGROUND_PAGE) {
+      allowed = true;
+      check_permission = true;
+    } else {
+      LOG(WARNING) << "Speech recognition only supported in Apps.";
+    }
+  }
+
+  BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
+                          base::Bind(callback, check_permission, allowed));
+}
+
+}  // namespace speech
+}  // namespace extensions