Vertically center multi-line RenderTextHarfBuzz that uses SetMinLineHeight().

ui/gfx/render_text_harfbuzz.cc

 // Copyright 2014 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_harfbuzz.h"
 
 #include <limits>
 #include <set>
 
 #include "base/i18n/bidi_line_iterator.h"
@@ skipping 1197 matching lines @@
   }
 
   if (lines().empty()) {
     // TODO(ckocagil): Remove ScopedTracker below once crbug.com/441028 is
     // fixed.
     std::unique_ptr<tracked_objects::ScopedTracker> tracking_profile(
         new tracked_objects::ScopedTracker(
             FROM_HERE_WITH_EXPLICIT_FUNCTION("441028 HarfBuzzLineBreaker")));
 
     internal::TextRunList* run_list = GetRunList();
+    const int height = std::max(font_list().GetHeight(), min_line_height());
     HarfBuzzLineBreaker line_breaker(
-        display_rect().width(), font_list().GetBaseline(),
-        std::max(font_list().GetHeight(), min_line_height()),
+        display_rect().width(),
+        DetermineBaselineCenteringText(height, font_list()), height,
         word_wrap_behavior(), GetDisplayText(),
         multiline() ? &GetLineBreaks() : nullptr, *run_list);
 
     tracking_profile.reset();
 
     if (multiline())
       line_breaker.ConstructMultiLines();
     else
       line_breaker.ConstructSingleLine();
     std::vector<internal::Line> lines;
@@ skipping 472 matching lines @@
 
       attribute.strike = run.strike;
       attribute.diagonal_strike = run.diagonal_strike;
       decorated_text->attributes.push_back(attribute);
     }
   }
   return true;
 }
 
 }  // namespace gfx