[ios] Moves tab_switcher code out of the ios_internal namespace.

ios/chrome/browser/ui/tab_switcher/tab_switcher_session_cell_data.h

Index: ios/chrome/browser/ui/tab_switcher/tab_switcher_session_cell_data.h
diff --git a/ios/chrome/browser/ui/tab_switcher/tab_switcher_session_cell_data.h b/ios/chrome/browser/ui/tab_switcher/tab_switcher_session_cell_data.h
index 2f8e4e80ba2164b1f557ab1af080334c3dff477b..06c16f8456e0a22e32676e599cb5872b46dcb4ca 100644
--- a/ios/chrome/browser/ui/tab_switcher/tab_switcher_session_cell_data.h
+++ b/ios/chrome/browser/ui/tab_switcher/tab_switcher_session_cell_data.h
@@ -9,7 +9,6 @@
 
 @class TabSwitcherHeaderView;
 
-namespace ios_internal {
 enum SessionCellType {

[sdefresne, 2017/01/03 16:04:30]

nit: maybe rename TabSwitcherSessionCellType.

[rohitrao (ping after 24h), 2017/01/04 13:36:38]

Done.

   kIncognitoSessionCell,
   kOpenTabSessionCell,
@@ -18,7 +17,6 @@ enum SessionCellType {
   kTabletRemoteSessionCell,
   kLaptopRemoteSessionCell,
 };
-}
 
 // This class hold the data used to configure the content of a
 // TabSwitcherHeaderCell.
@@ -31,9 +29,9 @@ enum SessionCellType {
 + (instancetype)openTabSessionCellData;
 + (instancetype)otherDevicesSessionCellData;
 
-- (instancetype)initWithSessionCellType:(ios_internal::SessionCellType)type;
+- (instancetype)initWithSessionCellType:(SessionCellType)type;
 
-@property(nonatomic, readonly) ios_internal::SessionCellType type;
+@property(nonatomic, readonly) SessionCellType type;
 @property(nonatomic, copy) NSString* title;
 @property(nonatomic, retain) UIImage* image;