Index: chrome/browser/android/voice_search_tab_helper.cc |
diff --git a/chrome/browser/android/voice_search_tab_helper.cc b/chrome/browser/android/voice_search_tab_helper.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..c8f10db3662fae873a0708f60ee2a395dd6b40b3 |
--- /dev/null |
+++ b/chrome/browser/android/voice_search_tab_helper.cc |
@@ -0,0 +1,38 @@ |
+// 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 "chrome/browser/android/voice_search_tab_helper.h" |
+ |
+#include "components/google/core/browser/google_util.h" |
+#include "content/public/browser/render_view_host.h" |
+#include "content/public/browser/web_contents.h" |
+#include "content/public/common/web_preferences.h" |
+#include "jni/VoiceSearchTabHelper_jni.h" |
+ |
+using content::WebContents; |
+ |
+// Register native methods |
+bool RegisterVoiceSearchTabHelper(JNIEnv* env) { |
+ return RegisterNativesImpl(env); |
+} |
+ |
+static void UpdateAutoplayStatus(JNIEnv* env, |
+ jobject obj, |
+ jobject j_web_contents) { |
+ WebContents* web_contents = WebContents::FromJavaWebContents(j_web_contents); |
+ content::RenderViewHost* host = web_contents->GetRenderViewHost(); |
+ content::WebPreferences prefs = host->GetWebkitPreferences(); |
+ |
+ // In the case where media autoplay has been enabled by default (e.g. in |
+ // performance media tests) do not update it based on navigation changes. |
+ // |
+ // Note that GetWekitPreferences() is 'stateless'. It returns the default |
+ // webkit preferences configuration from command line switches. |
+ if (!prefs.user_gesture_required_for_media_playback) |
+ return; |
+ |
+ prefs.user_gesture_required_for_media_playback = |
+ !google_util::IsGoogleSearchUrl(web_contents->GetLastCommittedURL()); |
+ host->UpdateWebkitPreferences(prefs); |
+} |