Improve spelling of "notification".

base/observer_list_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/observer_list.h"
 #include "base/observer_list_threadsafe.h"
 
 #include <vector>
 
 #include "base/compiler_specific.h"
@@ skipping 425 matching lines @@
   Adder a(1);
   AddInObserve<ObserverList<Foo> > b(&observer_list);
 
   observer_list.AddObserver(&a);
   observer_list.AddObserver(&b);
 
   FOR_EACH_OBSERVER(Foo, observer_list, Observe(1));
 
   EXPECT_TRUE(b.added);
   // B's adder should not have been notified because it was added during
-  // notificaiton.
+  // notification.
   EXPECT_EQ(0, b.adder.total);
 
   // Notify again to make sure b's adder is notified.
   FOR_EACH_OBSERVER(Foo, observer_list, Observe(1));
   EXPECT_EQ(1, b.adder.total);
 }
 
 // Same as above, but for ObserverListThreadSafe
 TEST(ObserverListThreadSafeTest, Existing) {
   MessageLoop loop;
   scoped_refptr<ObserverListThreadSafe<Foo> > observer_list(
       new ObserverListThreadSafe<Foo>(ObserverList<Foo>::NOTIFY_EXISTING_ONLY));
   Adder a(1);
   AddInObserve<ObserverListThreadSafe<Foo> > b(observer_list.get());
 
   observer_list->AddObserver(&a);
   observer_list->AddObserver(&b);
 
   observer_list->Notify(&Foo::Observe, 1);
   RunLoop().RunUntilIdle();
 
   EXPECT_TRUE(b.added);
   // B's adder should not have been notified because it was added during
-  // notificaiton.
+  // notification.
   EXPECT_EQ(0, b.adder.total);
 
   // Notify again to make sure b's adder is notified.
   observer_list->Notify(&Foo::Observe, 1);
   RunLoop().RunUntilIdle();
   EXPECT_EQ(1, b.adder.total);
 }
 
 class AddInClearObserve : public Foo {
  public:
@@ skipping 59 matching lines @@
   ListDestructor a(observer_list);
   observer_list->AddObserver(&a);
 
   FOR_EACH_OBSERVER(Foo, *observer_list, Observe(0));
   // If this test fails, there'll be Valgrind errors when this function goes out
   // of scope.
 }
 
 }  // namespace
 }  // namespace base