ui/gfx: Use base::string16 now that string16 was moved into base namespace.

ui/gfx/canvas_mac.mm

 // Copyright (c) 2012 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.
 
 #import <Cocoa/Cocoa.h>
 
 #include "ui/gfx/canvas.h"
 
 #include "base/logging.h"
 #include "base/strings/sys_string_conversions.h"
@@ skipping 17 matching lines @@
     style |= SkTypeface::kItalic;
 
   return static_cast<SkTypeface::Style>(style);
 }
 
 }  // namespace
 
 namespace gfx {
 
 // static
-void Canvas::SizeStringInt(const string16& text,
+void Canvas::SizeStringInt(const base::string16& text,
                            const gfx::Font& font,
                            int* width,
                            int* height,
                            int line_height,
                            int flags) {
   DLOG_IF(WARNING, line_height != 0) << "Line heights not implemented.";
   DLOG_IF(WARNING, flags & Canvas::MULTI_LINE) << "Multi-line not implemented.";
 
   NSFont* native_font = font.GetNativeFont();
   NSString* ns_string = base::SysUTF16ToNSString(text);
   NSDictionary* attributes =
       [NSDictionary dictionaryWithObject:native_font
                                   forKey:NSFontAttributeName];
   NSSize string_size = [ns_string sizeWithAttributes:attributes];
   *width = string_size.width;
   *height = font.GetHeight();
 }
 
-void Canvas::DrawStringWithShadows(const string16& text,
+void Canvas::DrawStringWithShadows(const base::string16& text,
                                    const gfx::Font& font,
                                    SkColor color,
                                    const gfx::Rect& text_bounds,
                                    int line_height,
                                    int flags,
                                    const ShadowValues& shadows) {
   DLOG_IF(WARNING, line_height != 0) << "Line heights not implemented.";
   DLOG_IF(WARNING, flags & Canvas::MULTI_LINE) << "Multi-line not implemented.";
   DLOG_IF(WARNING, !shadows.empty()) << "Text shadows not implemented.";
 
   skia::RefPtr<SkTypeface> typeface = skia::AdoptRef(
       SkTypeface::CreateFromName(
           font.GetFontName().c_str(), FontTypefaceStyle(font)));
   SkPaint paint;
   paint.setTypeface(typeface.get());
   paint.setColor(color);
   canvas_->drawText(text.c_str(),
-                    text.size() * sizeof(string16::value_type),
+                    text.size() * sizeof(base::string16::value_type),
                     text_bounds.x(),
                     text_bounds.bottom(),
                     paint);
 }
 
-void Canvas::DrawStringWithHalo(const string16& text,
+void Canvas::DrawStringWithHalo(const base::string16& text,
                                 const gfx::Font& font,
                                 SkColor text_color,
                                 SkColor halo_color,
                                 int x, int y, int w, int h,
                                 int flags) {
 }
 
 }  // namespace gfx