Update components for new prefs location.

This is a search-and-replace update for includes with "base/prefs" ->
"components/prefs" and the headers re-sorted.

DEPS files were updated to allow the components in question to depend on
components/prefs.

This should be a no-op from a build perspective.

BUG=583034

Review URL: https://codereview.chromium.org/1651203002

Cr-Commit-Position: refs/heads/master@{#372780}
diff --git a/components/prefs/pref_notifier_impl_unittest.cc b/components/prefs/pref_notifier_impl_unittest.cc
index cb3c3b5..a3f12349b 100644
--- a/components/prefs/pref_notifier_impl_unittest.cc
+++ b/components/prefs/pref_notifier_impl_unittest.cc
@@ -6,13 +6,13 @@
 
 #include "base/bind.h"
 #include "base/callback.h"
-#include "base/prefs/mock_pref_change_callback.h"
-#include "base/prefs/pref_notifier_impl.h"
-#include "base/prefs/pref_observer.h"
-#include "base/prefs/pref_registry_simple.h"
-#include "base/prefs/pref_service.h"
-#include "base/prefs/pref_value_store.h"
-#include "base/prefs/testing_pref_service.h"
+#include "components/prefs/mock_pref_change_callback.h"
+#include "components/prefs/pref_notifier_impl.h"
+#include "components/prefs/pref_observer.h"
+#include "components/prefs/pref_registry_simple.h"
+#include "components/prefs/pref_service.h"
+#include "components/prefs/pref_value_store.h"
+#include "components/prefs/testing_pref_service.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"