browser: Put more files in chrome namespace.

chrome/browser/ui/aura/chrome_browser_main_extra_parts_aura.cc

Index: chrome/browser/ui/aura/chrome_browser_main_extra_parts_aura.cc
diff --git a/chrome/browser/ui/aura/chrome_browser_main_extra_parts_aura.cc b/chrome/browser/ui/aura/chrome_browser_main_extra_parts_aura.cc
index 3c9bea2b6a5c67590e4f3b026d33563c6b9a05be..bc27803de66103c94a8cdf44e6fdab52c1d6229d 100644
--- a/chrome/browser/ui/aura/chrome_browser_main_extra_parts_aura.cc
+++ b/chrome/browser/ui/aura/chrome_browser_main_extra_parts_aura.cc
@@ -16,8 +16,8 @@
 #include "ui/gfx/screen.h"
 #include "ui/views/widget/native_widget_aura.h"
 #if defined(OS_LINUX)
-#include "ui/base/linux_ui.h"
 #include "chrome/browser/ui/libgtk2ui/gtk2_ui.h"
+#include "ui/base/linux_ui.h"
 #endif
 #endif  // !USE_ASH
 
@@ -49,10 +49,10 @@ void ChromeBrowserMainExtraPartsAura::PostMainMessageLoopRun() {
   // after the metrics service is deleted.
 }
 
-namespace browser {
+namespace chrome {
 
 void AddAuraToolkitExtraParts(ChromeBrowserMainParts* main_parts) {
   main_parts->AddParts(new ChromeBrowserMainExtraPartsAura());
 }
 
-}  // namespace browser
+}  // namespace chrome