Pass FROM_HERE to ObserverListThreadSafe::Notify to improve profile.

base/observer_list_unittest.cc

Index: base/observer_list_unittest.cc
diff --git a/base/observer_list_unittest.cc b/base/observer_list_unittest.cc
index 65ef934ad8a5278b4f344e58c7b782dd2d7b4306..636aa83fb9dcc22f9b1b1360d7609e6dfcd7c513 100644
--- a/base/observer_list_unittest.cc
+++ b/base/observer_list_unittest.cc
@@ -134,7 +134,7 @@ class AddRemoveThread : public PlatformThread::Delegate,
     }
 
     if (do_notifies_) {
-      list_->Notify(&Foo::Observe, 10);
+      list_->Notify(FROM_HERE, &Foo::Observe, 10);
     }
 
     loop_->PostTask(
@@ -217,14 +217,14 @@ TEST(ObserverListThreadSafeTest, BasicTest) {
   observer_list->AddObserver(&a);
   observer_list->AddObserver(&b);
 
-  observer_list->Notify(&Foo::Observe, 10);
+  observer_list->Notify(FROM_HERE, &Foo::Observe, 10);
   RunLoop().RunUntilIdle();
 
   observer_list->AddObserver(&evil);
   observer_list->AddObserver(&c);
   observer_list->AddObserver(&d);
 
-  observer_list->Notify(&Foo::Observe, 10);
+  observer_list->Notify(FROM_HERE, &Foo::Observe, 10);
   RunLoop().RunUntilIdle();
 
   EXPECT_EQ(20, a.total);
@@ -247,7 +247,7 @@ TEST(ObserverListThreadSafeTest, RemoveObserver) {
   observer_list->RemoveObserver(&a);
   observer_list->RemoveObserver(&b);
 
-  observer_list->Notify(&Foo::Observe, 10);
+  observer_list->Notify(FROM_HERE, &Foo::Observe, 10);
   RunLoop().RunUntilIdle();
 
   EXPECT_EQ(0, a.total);
@@ -258,7 +258,7 @@ TEST(ObserverListThreadSafeTest, RemoveObserver) {
   // Should also do nothing.
   observer_list->RemoveObserver(&b);
 
-  observer_list->Notify(&Foo::Observe, 10);
+  observer_list->Notify(FROM_HERE, &Foo::Observe, 10);
   RunLoop().RunUntilIdle();
 
   EXPECT_EQ(10, a.total);
@@ -280,7 +280,7 @@ TEST(ObserverListThreadSafeTest, WithoutMessageLoop) {
     MessageLoop loop;
     observer_list->AddObserver(&c);
 
-    observer_list->Notify(&Foo::Observe, 10);
+    observer_list->Notify(FROM_HERE, &Foo::Observe, 10);
     RunLoop().RunUntilIdle();
 
     EXPECT_EQ(0, a.total);
@@ -294,7 +294,7 @@ TEST(ObserverListThreadSafeTest, WithoutMessageLoop) {
     observer_list->RemoveObserver(&c);
 
     // Notify again.
-    observer_list->Notify(&Foo::Observe, 20);
+    observer_list->Notify(FROM_HERE, &Foo::Observe, 20);
     RunLoop().RunUntilIdle();
 
     EXPECT_EQ(20, a.total);
@@ -308,7 +308,7 @@ TEST(ObserverListThreadSafeTest, WithoutMessageLoop) {
   // Notifying should not fail but should also be a no-op.
   MessageLoop loop;
   observer_list->AddObserver(&b);
-  observer_list->Notify(&Foo::Observe, 30);
+  observer_list->Notify(FROM_HERE, &Foo::Observe, 30);
   RunLoop().RunUntilIdle();
 
   EXPECT_EQ(20, a.total);
@@ -353,7 +353,7 @@ TEST(ObserverListThreadSafeTest, RemoveMultipleObservers) {
   a.AddFooToRemove(&a);
   a.AddFooToRemove(&b);
 
-  observer_list->Notify(&Foo::Observe, 1);
+  observer_list->Notify(FROM_HERE, &Foo::Observe, 1);
   RunLoop().RunUntilIdle();
 }
 
@@ -392,7 +392,7 @@ static void ThreadSafeObserverHarness(int num_threads,
     if ((Time::Now() - start).InMilliseconds() > kThreadRunTime)
       break;
 
-    observer_list->Notify(&Foo::Observe, 10);
+    observer_list->Notify(FROM_HERE, &Foo::Observe, 10);
 
     RunLoop().RunUntilIdle();
   }
@@ -424,7 +424,7 @@ TEST(ObserverListThreadSafeTest, OutlivesMessageLoop) {
   observer_list->AddObserver(&a);
   delete loop;
   // Test passes if we don't crash here.
-  observer_list->Notify(&Foo::Observe, 1);
+  observer_list->Notify(FROM_HERE, &Foo::Observe, 1);
 }
 
 TEST(ObserverListTest, Existing) {
@@ -458,7 +458,7 @@ TEST(ObserverListThreadSafeTest, Existing) {
   observer_list->AddObserver(&a);
   observer_list->AddObserver(&b);
 
-  observer_list->Notify(&Foo::Observe, 1);
+  observer_list->Notify(FROM_HERE, &Foo::Observe, 1);
   RunLoop().RunUntilIdle();
 
   EXPECT_TRUE(b.added);
@@ -467,7 +467,7 @@ TEST(ObserverListThreadSafeTest, Existing) {
   EXPECT_EQ(0, b.adder.total);
 
   // Notify again to make sure b's adder is notified.
-  observer_list->Notify(&Foo::Observe, 1);
+  observer_list->Notify(FROM_HERE, &Foo::Observe, 1);
   RunLoop().RunUntilIdle();
   EXPECT_EQ(1, b.adder.total);
 }