Tab audio mute control (views UI), behind a switch (off by default).

chrome/browser/ui/views/tabs/fake_base_tab_strip_controller.cc

 // Copyright (c) 2012 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/ui/views/tabs/fake_base_tab_strip_controller.h"
 
 #include "chrome/browser/ui/views/tabs/tab_renderer_data.h"
 #include "chrome/browser/ui/views/tabs/tab_strip.h"
 
 FakeBaseTabStripController::FakeBaseTabStripController()
@@ skipping 61 matching lines @@
 
 void FakeBaseTabStripController::ToggleSelected(int index) {
 }
 
 void FakeBaseTabStripController::AddSelectionFromAnchorTo(int index) {
 }
 
 void FakeBaseTabStripController::CloseTab(int index, CloseTabSource source) {
 }
 
+void FakeBaseTabStripController::ToggleTabAudioMute(int index) {
+}
+
 void FakeBaseTabStripController::ShowContextMenuForTab(
     Tab* tab,
     const gfx::Point& p,
     ui::MenuSourceType source_type) {
 }
 
 void FakeBaseTabStripController::UpdateLoadingAnimations() {
 }
 
 int FakeBaseTabStripController::HasAvailableDragActions() const {
@@ skipping 29 matching lines @@
 
 void FakeBaseTabStripController::OnStartedDraggingTabs() {
 }
 
 void FakeBaseTabStripController::OnStoppedDraggingTabs() {
 }
 
 void FakeBaseTabStripController::CheckFileSupported(const GURL& url) {
   tab_strip_->FileSupported(url, true);
 }