[Mac] Placate Clang's (pedantic) warning about CrTrackingArea's initializer.

chrome/browser/ui/cocoa/tabs/tab_strip_controller.mm

Index: chrome/browser/ui/cocoa/tabs/tab_strip_controller.mm
diff --git a/chrome/browser/ui/cocoa/tabs/tab_strip_controller.mm b/chrome/browser/ui/cocoa/tabs/tab_strip_controller.mm
index eb49281b24190e69fd3681f8502b02f9ceec5a00..4de1db1af3dec7a6c9187d47550866fd0245b1d9 100644
--- a/chrome/browser/ui/cocoa/tabs/tab_strip_controller.mm
+++ b/chrome/browser/ui/cocoa/tabs/tab_strip_controller.mm
@@ -325,7 +325,7 @@ private:
         [[CrTrackingArea alloc] initWithRect:[newTabButton_ bounds]
                                      options:(NSTrackingMouseEnteredAndExited |
                                               NSTrackingActiveAlways)
-                                       owner:self
+                                proxiedOwner:self
                                     userInfo:nil]);
     if (browserWindow)  // Nil for Browsers without a tab strip (e.g. popups).
       [newTabTrackingArea_ clearOwnerWhenWindowWillClose:browserWindow];
@@ -359,7 +359,7 @@ private:
                      NSTrackingMouseMoved |
                      NSTrackingActiveAlways |
                      NSTrackingInVisibleRect
-               owner:self
+        proxiedOwner:self
             userInfo:nil]);
     if (browserWindow)  // Nil for Browsers without a tab strip (e.g. popups).
       [trackingArea_ clearOwnerWhenWindowWillClose:browserWindow];