Mac/clang: First pass over unit_tests

chrome/browser/cocoa/location_bar_view_mac_unittest.mm

Index: chrome/browser/cocoa/location_bar_view_mac_unittest.mm
diff --git a/chrome/browser/cocoa/location_bar_view_mac_unittest.mm b/chrome/browser/cocoa/location_bar_view_mac_unittest.mm
index c3b1f9a662ce81a3d9f78799adecf0f37d89aa47..f82a2dd673c5d79c8ce72eba9b19ace19310c6b7 100644
--- a/chrome/browser/cocoa/location_bar_view_mac_unittest.mm
+++ b/chrome/browser/cocoa/location_bar_view_mac_unittest.mm
@@ -81,11 +81,11 @@ TEST_F(LocationBarViewMacTest, OnChangedImpl) {
   NSImage* image = [NSImage imageNamed:@"NSApplicationIcon"];
 
   const std::wstring kKeyword(L"Google");
-  const NSString* kKeywordPrefix = @"Press ";
-  const NSString* kKeywordSuffix = @" to search Google";
-  const NSString* kKeywordString = @"Search Google:";
+  NSString* const kKeywordPrefix = @"Press ";
+  NSString* const kKeywordSuffix = @" to search Google";
+  NSString* const kKeywordString = @"Search Google:";
   // 0x2026 is Unicode ellipses.
-  const NSString* kPartialString =
+  NSString* const kPartialString =
       [NSString stringWithFormat:@"Search Go%C:", 0x2026];
 
   // With no special hints requested, none set.