Enable sync for the settings from the Extension Settings API.

chrome/browser/extensions/extension_settings_storage_unittest.cc

Index: chrome/browser/extensions/extension_settings_storage_unittest.cc
diff --git a/chrome/browser/extensions/extension_settings_storage_unittest.cc b/chrome/browser/extensions/extension_settings_storage_unittest.cc
index ccbbf16037d1c3e968669c270ed8ede16f226c8b..a7a2d12dc2b551ac585c52a798d3902d2e4290bb 100644
--- a/chrome/browser/extensions/extension_settings_storage_unittest.cc
+++ b/chrome/browser/extensions/extension_settings_storage_unittest.cc
@@ -37,9 +37,9 @@ class AssertEqualsCallback : public ExtensionSettingsStorage::Callback {
     called_ = true;
     if (expected_ == NULL) {
       ASSERT_TRUE(actual == NULL) << "Values are different:\n" <<
-        "Line:     " << line_ << "\n" <<
-        "Expected: NULL\n" <<
-        "Got:      " << GetJson(actual);
+          "Line:     " << line_ << "\n" <<
+          "Expected: NULL\n" <<
+          "Got:      " << GetJson(actual);
     } else {
       ASSERT_TRUE(expected_->Equals(actual)) << "Values are different:\n" <<
           "Line:     " << line_ << "\n" <<
@@ -147,7 +147,7 @@ void ExtensionSettingsStorageTest::TearDown() {
 }
 
 void ExtensionSettingsStorageTest::SetStorage(
-    ExtensionSettingsStorage* storage) {
+    SyncableExtensionSettingsStorage* storage) {
   storage_ = storage;
 }