Mojo: Make GetDefault{AsyncWaiter,Logger} static methods of Environment.

mojo/environment/environment.cc

Index: mojo/environment/environment.cc
diff --git a/mojo/environment/environment.cc b/mojo/environment/environment.cc
index 468f6a3ffc6d0cffa3e76f0dfbc335d12cada370..f8611139381a1440940a85821edbc73c5751112f 100644
--- a/mojo/environment/environment.cc
+++ b/mojo/environment/environment.cc
@@ -4,6 +4,9 @@
 
 #include "mojo/public/cpp/environment/environment.h"
 
+#include "mojo/environment/default_async_waiter_impl.h"
+#include "mojo/environment/default_logger_impl.h"
+
 namespace mojo {
 
 // These methods are intentionally not implemented so that there is a link
@@ -12,8 +15,22 @@ namespace mojo {
 Environment::Environment() {
 }
 
+Environment::Environment(const MojoAsyncWaiter* default_async_waiter,
+                         const MojoLogger* default_logger) {
+}
+
 Environment::~Environment() {
 }
 #endif
 
+// static
+const MojoAsyncWaiter* Environment::GetDefaultAsyncWaiter() {
+  return internal::GetDefaultAsyncWaiterImpl();
+}
+
+// static
+const MojoLogger* Environment::GetDefaultLogger() {
+  return internal::GetDefaultLoggerImpl();
+}
+
 }  // namespace mojo