Remove profile-keyed factory boilerplates.

chrome/browser/extensions/api/font_settings/font_settings_api.cc

Index: chrome/browser/extensions/api/font_settings/font_settings_api.cc
diff --git a/chrome/browser/extensions/api/font_settings/font_settings_api.cc b/chrome/browser/extensions/api/font_settings/font_settings_api.cc
index 802c625ecec1de8c73ba2f2e2970946af1c27d54..9568b371901aa7be730d9d837c0618b222ff3d0b 100644
--- a/chrome/browser/extensions/api/font_settings/font_settings_api.cc
+++ b/chrome/browser/extensions/api/font_settings/font_settings_api.cc
@@ -9,6 +9,7 @@
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/json/json_writer.h"
+#include "base/lazy_instance.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/values.h"
@@ -217,6 +218,14 @@ FontSettingsAPI::FontSettingsAPI(Profile* profile)
 FontSettingsAPI::~FontSettingsAPI() {
 }
 
+static base::LazyInstance<ProfileKeyedAPIFactory<FontSettingsAPI> >
+g_factory = LAZY_INSTANCE_INITIALIZER;
+
+// static
+ProfileKeyedAPIFactory<FontSettingsAPI>* FontSettingsAPI::GetFactoryInstance() {
+  return &g_factory.Get();
+}
+
 bool ClearFontFunction::RunImpl() {
   if (profile_->IsOffTheRecord()) {
     error_ = kSetFromIncognitoError;