Strip out stream counting from AudioRendererHost.

content/public/test/mock_render_process_host.cc

Index: content/public/test/mock_render_process_host.cc
diff --git a/content/public/test/mock_render_process_host.cc b/content/public/test/mock_render_process_host.cc
index d0af148fad74c82c5396c4aadde60099e63f91dc..7ea1a745f1be43dc456098ffd11795e67f7c962f 100644
--- a/content/public/test/mock_render_process_host.cc
+++ b/content/public/test/mock_render_process_host.cc
@@ -143,12 +143,14 @@ int MockRenderProcessHost::VisibleWidgetCount() const {
   return 1;
 }
 
-void MockRenderProcessHost::AudioStateChanged() {}
-
 bool MockRenderProcessHost::IsForGuestsOnly() const {
   return is_for_guests_only_;
 }
 
+void MockRenderProcessHost::OnAudioStreamAdded() {}
+
+void MockRenderProcessHost::OnAudioStreamRemoved() {}
+
 StoragePartition* MockRenderProcessHost::GetStoragePartition() const {
   return BrowserContext::GetDefaultStoragePartition(browser_context_);
 }