Harmony: Apply the upper bound on equal-sized button widths in DialogClientView.

ui/views/layout/layout_provider.cc

 // Copyright 2017 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/views/layout/layout_provider.h"
 
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "ui/base/material_design/material_design_controller.h"
 #include "ui/views/layout/layout_constants.h"
@@ skipping 38 matching lines @@
     case InsetsMetric::INSETS_VECTOR_IMAGE_BUTTON:
       return gfx::Insets(kVectorButtonExtraTouchSize);
   }
   NOTREACHED();
   return gfx::Insets();
 }
 
 int LayoutProvider::GetDistanceMetric(int metric) const {
   DCHECK_GE(metric, VIEWS_INSETS_MAX);
   switch (metric) {
+    case DistanceMetric::DISTANCE_BUTTON_HORIZONTAL_PADDING:
+      return kButtonHorizontalPadding;
+    case DistanceMetric::DISTANCE_BUTTON_MAX_LINKABLE_WIDTH:
+      return 0;
     case DistanceMetric::DISTANCE_CLOSE_BUTTON_MARGIN:
       return kCloseButtonMargin;
     case DistanceMetric::DISTANCE_RELATED_BUTTON_HORIZONTAL:
       return kRelatedButtonHSpacing;
     case DistanceMetric::DISTANCE_RELATED_CONTROL_HORIZONTAL:
       return kRelatedControlHorizontalSpacing;
     case DistanceMetric::DISTANCE_RELATED_CONTROL_VERTICAL:
       return kRelatedControlVerticalSpacing;
     case DistanceMetric::DISTANCE_DIALOG_BUTTON_MINIMUM_WIDTH:
       return kDialogMinimumButtonWidth;
-    case DistanceMetric::DISTANCE_BUTTON_HORIZONTAL_PADDING:
-      return kButtonHorizontalPadding;
   }
   NOTREACHED();
   return 0;
 }
 
 const TypographyProvider& LayoutProvider::GetTypographyProvider() const {
   return typography_provider_;
 }
 
 int LayoutProvider::GetSnappedDialogWidth(int min_width) const {
   return min_width;
 }
 
 }  // namespace views