Omit save_password_infobar.cc from the build when unused

chrome/common/chrome_switches.h

Index: chrome/common/chrome_switches.h
diff --git a/chrome/common/chrome_switches.h b/chrome/common/chrome_switches.h
index 18115c42a8d1f476756e9a63964201a53675615c..97704c2df2d6bb4790fcea638e8bce5a1b0e5536 100644
--- a/chrome/common/chrome_switches.h
+++ b/chrome/common/chrome_switches.h
@@ -98,7 +98,6 @@ extern const char kDisablePrintPreview[];
 extern const char kDisablePromptOnRepost[];
 extern const char kDisableQuic[];
 extern const char kDisableQuicPortSelection[];
-extern const char kDisableSavePasswordBubble[];
 extern const char kDisableSdchPersistence[];
 extern const char kDisableSessionCrashedBubble[];
 extern const char kDisableSiteEngagementService[];
@@ -153,7 +152,6 @@ extern const char kEnablePushApiBackgroundMode[];
 extern const char kDisablePushApiBackgroundMode[];
 extern const char kEnableQuic[];
 extern const char kEnableQuicPortSelection[];
-extern const char kEnableSavePasswordBubble[];
 extern const char kEnableSdchPersistence[];
 extern const char kEnableSessionCrashedBubble[];
 extern const char kEnableSettingsWindow[];
@@ -352,12 +350,14 @@ extern const char kDisableAppWindowCycling[];
 extern const char kDisableHostedAppShimCreation[];
 extern const char kDisableHostedAppsInWindows[];
 extern const char kDisableMacViewsNativeAppWindows[];
+extern const char kDisableSavePasswordBubble[];
 extern const char kDisableTranslateNewUX[];
 extern const char kEnableAppInfoDialogMac[];
 extern const char kEnableAppWindowCycling[];
 extern const char kEnableHostedAppsInWindows[];
 extern const char kEnableMacViewsNativeAppWindows[];
 extern const char kEnableMacViewsDialogs[];
+extern const char kEnableSavePasswordBubble[];
 extern const char kEnableTranslateNewUX[];
 extern const char kMetricsClientID[];
 extern const char kRelauncherProcess[];