Fix logging of string16s from gfx namespace on Windows.

ui/gfx/render_text.cc

 // 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.
 
 #include "ui/gfx/render_text.h"
 
 #include <algorithm>
 
 #include "base/debug/trace_event.h"
 #include "base/i18n/break_iterator.h"
@@ skipping 29 matching lines @@
 #ifndef NDEBUG
 // Check StyleRanges invariant conditions: sorted and non-overlapping ranges.
 void CheckStyleRanges(const gfx::StyleRanges& style_ranges, size_t length) {
   if (length == 0) {
     DCHECK(style_ranges.empty()) << "Style ranges exist for empty text.";
     return;
   }
   for (gfx::StyleRanges::size_type i = 0; i < style_ranges.size() - 1; i++) {
     const ui::Range& former = style_ranges[i].range;
     const ui::Range& latter = style_ranges[i + 1].range;
-    DCHECK(!former.is_empty()) << "Empty range at " << i << ":" << former;
-    DCHECK(former.IsValid()) << "Invalid range at " << i << ":" << former;
-    DCHECK(!former.is_reversed()) << "Reversed range at " << i << ":" << former;
+    DCHECK(!former.is_empty()) << "Empty range at " << i << ":" <<
+        former.ToString();
+    DCHECK(former.IsValid()) << "Invalid range at " << i << ":" <<
+        former.ToString();
+    DCHECK(!former.is_reversed()) << "Reversed range at " << i << ":" <<
+        former.ToString();
     DCHECK(former.end() == latter.start()) << "Ranges gap/overlap/unsorted." <<
-        "former:" << former << ", latter:" << latter;
+        "former:" << former.ToString() << ", latter:" << latter.ToString();
   }
   const gfx::StyleRange& end_style = *style_ranges.rbegin();
   DCHECK(!end_style.range.is_empty()) << "Empty range at end.";
   DCHECK(end_style.range.IsValid()) << "Invalid range at end.";
   DCHECK(!end_style.range.is_reversed()) << "Reversed range at end.";
   DCHECK(end_style.range.end() == length) << "Style and text length mismatch.";
 }
 #endif
 
 void ApplyStyleRangeImpl(gfx::StyleRanges* style_ranges,
@@ skipping 922 matching lines @@
   if (cursor_enabled() && cursor_visible() && focused()) {
     const Rect& bounds = GetUpdatedCursorBounds();
     if (bounds.width() != 0)
       canvas->FillRect(bounds, cursor_color_);
     else
       canvas->DrawRect(bounds, cursor_color_);
   }
 }
 
 }  // namespace gfx