ui: Pass the parameter |languages| of StatusBubble::SetURL() as std::string.

chrome/browser/ui/cocoa/status_bubble_mac.mm

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/cocoa/status_bubble_mac.h"
 
 #include <limits>
 
 #include "base/compiler_specific.h"
 #include "base/mac/mac_util.h"
@@ skipping 107 matching lines @@
   [[[window_ animationForKey:kFadeAnimationKey] delegate] invalidate];
   Detach();
   [window_ release];
   window_ = nil;
 }
 
 void StatusBubbleMac::SetStatus(const string16& status) {
   SetText(status, false);
 }
 
-void StatusBubbleMac::SetURL(const GURL& url, const string16& languages) {
+void StatusBubbleMac::SetURL(const GURL& url, const std::string& languages) {
   url_ = url;
   languages_ = languages;
 
   NSRect frame = [window_ frame];
 
   // Reset frame size when bubble is hidden.
   if (state_ == kBubbleHidden) {
     is_expanded_ = false;
     frame.size.width = NSWidth(CalculateWindowFrame(/*expand=*/false));
     [window_ setFrame:frame display:NO];
   }
 
   int text_width = static_cast<int>(NSWidth(frame) -
                                     kBubbleViewTextPositionX -
                                     kTextPadding);
 
   // Scale from view to window coordinates before eliding URL string.
   NSSize scaled_width = NSMakeSize(text_width, 0);
   scaled_width = [[parent_ contentView] convertSize:scaled_width fromView:nil];
   text_width = static_cast<int>(scaled_width.width);
   NSFont* font = [[window_ contentView] font];
   gfx::Font font_chr(base::SysNSStringToUTF16([font fontName]),
                      [font pointSize]);
 
-  string16 original_url_text = net::FormatUrl(url, UTF16ToUTF8(languages));
-  string16 status = ui::ElideUrl(url, font_chr, text_width,
-      UTF16ToUTF8(languages));
+  string16 original_url_text = net::FormatUrl(url, languages);
+  string16 status = ui::ElideUrl(url, font_chr, text_width, languages);
 
   SetText(status, true);
 
   // In testing, don't use animation. When ExpandBubble is tested, it is
   // called explicitly.
   if (immediate_)
     return;
   else
     CancelExpandTimer();
 
@@ skipping 434 matching lines @@
   // Calculate the width available for expanded and standard bubbles.
   NSRect window_frame = CalculateWindowFrame(/*expand=*/true);
   CGFloat max_bubble_width = NSWidth(window_frame);
   CGFloat standard_bubble_width =
       NSWidth(CalculateWindowFrame(/*expand=*/false));
 
   // Generate the URL string that fits in the expanded bubble.
   NSFont* font = [[window_ contentView] font];
   gfx::Font font_chr(base::SysNSStringToUTF16([font fontName]),
       [font pointSize]);
-  string16 expanded_url = ui::ElideUrl(url_, font_chr,
-      max_bubble_width, UTF16ToUTF8(languages_));
+  string16 expanded_url = ui::ElideUrl(
+      url_, font_chr, max_bubble_width, languages_);
 
   // Scale width from gfx::Font in view coordinates to window coordinates.
   int required_width_for_string =
       font_chr.GetStringWidth(expanded_url) +
           kTextPadding * 2 + kBubbleViewTextPositionX;
   NSSize scaled_width = NSMakeSize(required_width_for_string, 0);
   scaled_width = [[parent_ contentView] convertSize:scaled_width toView:nil];
   required_width_for_string = scaled_width.width;
 
   // The expanded width must be at least as wide as the standard width, but no
@@ skipping 103 matching lines @@
     }
 
     // Round the top corners when the bubble is below the parent window.
     if (NSMinY(window_frame) < NSMinY(parent_frame)) {
       corner_flags |= kRoundedTopLeftCorner | kRoundedTopRightCorner;
     }
   }
 
   return corner_flags;
 }