Remove hardware check that enables always-on hotwording.

chrome/browser/search/hotword_service_factory.cc

Index: chrome/browser/search/hotword_service_factory.cc
diff --git a/chrome/browser/search/hotword_service_factory.cc b/chrome/browser/search/hotword_service_factory.cc
index 8884ad6c9f9becf3a80a9e1fde44c07e53ecd4c0..ee3067974c41428451ee24664b9bbbc9d79682ae 100644
--- a/chrome/browser/search/hotword_service_factory.cc
+++ b/chrome/browser/search/hotword_service_factory.cc
@@ -47,6 +47,9 @@ bool HotwordServiceFactory::IsHotwordAllowed(BrowserContext* context) {
 
 // static
 bool HotwordServiceFactory::IsHotwordHardwareAvailable() {
+// Temporarily disabling hotword hardware check for M42. Will be

[Lei Zhang, 2015/03/13 06:19:32]

If you are not sure what milestone the feature will be ready in, consider
changing it so that this feature is only enabled on dev/canary channel. When the
feature is ready, remove the channel check. That way you don't have to do ToT
commit + merge + ToT revert for every milestone.

[Anand Mistry (off Chromium), 2015/03/13 06:26:03]

Hm, how do you do that?

+// re-enabled for M43.
+#if 0
 #if defined(OS_CHROMEOS)
   if (chromeos::CrasAudioHandler::IsInitialized()) {
     chromeos::AudioDeviceList devices;
@@ -59,6 +62,7 @@ bool HotwordServiceFactory::IsHotwordHardwareAvailable() {
     }
   }
 #endif
+#endif  // 0
   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
   return command_line->HasSwitch(switches::kEnableExperimentalHotwordHardware);
 }