startup: Put it in chrome namespace.

chrome/browser/ui/startup/startup_types.h

Index: chrome/browser/ui/startup/startup_types.h
diff --git a/chrome/browser/ui/startup/startup_types.h b/chrome/browser/ui/startup/startup_types.h
index 5f2d177a3159e18146fbb0d89e730d08c1092b59..b716dbe5ac8097c164faf3436389d4930bba78be 100644
--- a/chrome/browser/ui/startup/startup_types.h
+++ b/chrome/browser/ui/startup/startup_types.h
@@ -6,7 +6,7 @@
 #define CHROME_BROWSER_UI_STARTUP_STARTUP_TYPES_H_
 #pragma once
 
-namespace browser {
+namespace chrome {
 namespace startup {
 
 enum IsProcessStartup {
@@ -17,6 +17,7 @@ enum IsProcessStartup {
   IS_PROCESS_STARTUP        // Session is being created when the Chrome process
                             // is not already running.
 };
+
 enum IsFirstRun {
   IS_NOT_FIRST_RUN,         // Session is being created after Chrome has already
                             // been run at least once on the system.
@@ -25,6 +26,6 @@ enum IsFirstRun {
 };
 
 }  // namespace startup
-}  // namespace browser
+}  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_STARTUP_STARTUP_TYPES_H_