base: Remove the string logging from CHECK().

media/audio/sounds/sounds_manager.cc

Index: media/audio/sounds/sounds_manager.cc
diff --git a/media/audio/sounds/sounds_manager.cc b/media/audio/sounds/sounds_manager.cc
index c678645eae247eb460ae38f35e7c87438fb46b90..b031ba8feb0dfc98c6ac3c86314920057f4cfee0 100644
--- a/media/audio/sounds/sounds_manager.cc
+++ b/media/audio/sounds/sounds_manager.cc
@@ -98,8 +98,8 @@ SoundsManager::~SoundsManager() { DCHECK(CalledOnValidThread()); }
 
 // static
 void SoundsManager::Create() {
-  CHECK(!g_instance || g_initialized_for_testing)
-      << "SoundsManager::Create() is called twice";
+  // SoundsManager::Create() is called twice
+  CHECK(!g_instance || g_initialized_for_testing);
   if (g_initialized_for_testing)
     return;
   g_instance = new SoundsManagerImpl();
@@ -107,21 +107,23 @@ void SoundsManager::Create() {
 
 // static
 void SoundsManager::Shutdown() {
-  CHECK(g_instance) << "SoundsManager::Shutdown() is called "
-                    << "without previous call to Create()";
+  // SoundsManager::Shutdown() is called without previous call to Create()
+  CHECK(g_instance);
   delete g_instance;
   g_instance = NULL;
 }
 
 // static
 SoundsManager* SoundsManager::Get() {
-  CHECK(g_instance) << "SoundsManager::Get() is called before Create()";
+  // SoundsManager::Get() is called before Create()
+  CHECK(g_instance);
   return g_instance;
 }
 
 // static
 void SoundsManager::InitializeForTesting(SoundsManager* manager) {
-  CHECK(!g_instance) << "SoundsManager is already initialized.";
+  // SoundsManager is already initialized.
+  CHECK(!g_instance);
   CHECK(manager);
   g_instance = manager;
   g_initialized_for_testing = true;