Update mojo sdk to rev e7270700d671fa8e458b4d8c9e47f7bcfb65da0b

mojo/environment/environment.cc

Index: mojo/environment/environment.cc
diff --git a/mojo/environment/environment.cc b/mojo/environment/environment.cc
index ec1816618a83d3ad84f4da4f802f17b81ecc7da9..7cc9b1cb05bc534f3852060f329c2c0c62523dc3 100644
--- a/mojo/environment/environment.cc
+++ b/mojo/environment/environment.cc
@@ -7,6 +7,7 @@
 #include "mojo/environment/default_async_waiter_impl.h"
 #include "mojo/environment/default_logger_impl.h"
 #include "mojo/environment/default_run_loop_impl.h"
+#include "mojo/environment/default_task_tracker_impl.h"
 
 namespace mojo {
 
@@ -35,6 +36,11 @@ const MojoLogger* Environment::GetDefaultLogger() {
 }
 
 // static
+const TaskTracker* Environment::GetDefaultTaskTracker() {
+  return internal::GetDefaultTaskTracker();
+}
+
+// static
 void Environment::InstantiateDefaultRunLoop() {
   internal::InstantiateDefaultRunLoopImpl();
 }
@@ -44,4 +50,6 @@ void Environment::DestroyDefaultRunLoop() {
   internal::DestroyDefaultRunLoopImpl();
 }
 
+
+
 }  // namespace mojo