[Password Generation] Update Aura UI

ui/views/controls/styled_label.cc

Index: ui/views/controls/styled_label.cc
diff --git a/ui/views/controls/styled_label.cc b/ui/views/controls/styled_label.cc
index e7ee56c0b44de2b806803fd4da900308c5ade9d4..bd678279298a7daa80184d6b731f1cf6bfb879c5 100644
--- a/ui/views/controls/styled_label.cc
+++ b/ui/views/controls/styled_label.cc
@@ -94,7 +94,8 @@ bool StyledLabel::StyleRange::operator<(
 
 StyledLabel::StyledLabel(const base::string16& text,
                          StyledLabelListener* listener)
-    : listener_(listener),
+    : line_height_multiplier_(1.0),
+      listener_(listener),
       displayed_on_background_color_set_(false),
       auto_color_readability_enabled_(true) {
   base::TrimWhitespace(text, base::TRIM_TRAILING, &text_);
@@ -133,6 +134,13 @@ void StyledLabel::SetDefaultStyle(const RangeStyleInfo& style_info) {
   PreferredSizeChanged();
 }
 
+void StyledLabel::SetLineHeightMultiplier(double multiplier) {
+  DCHECK_GT(multiplier, 1.0);
+
+  line_height_multiplier_ = multiplier;
+  PreferredSizeChanged();
+}
+
 void StyledLabel::SetDisplayedOnBackgroundColor(SkColor color) {
   displayed_on_background_color_ = color;
   displayed_on_background_color_set_ = true;
@@ -193,7 +201,7 @@ gfx::Size StyledLabel::CalculateAndDoLayout(int width, bool dry_run) {
   if (width <= 0 || text_.empty())
     return gfx::Size();
 
-  const int line_height = CalculateLineHeight(font_list_);
+  const int line_height = GetLineHeight();
   // The index of the line we're on.
   int line = 0;
   // The x position (in pixels) of the line we're on, relative to content
@@ -295,11 +303,10 @@ gfx::Size StyledLabel::CalculateAndDoLayout(int width, bool dry_run) {
     gfx::Insets focus_border_insets(label->GetInsets());
     focus_border_insets += -label->View::GetInsets();
     const gfx::Size view_size = label->GetPreferredSize();
-    DCHECK_EQ(line_height, view_size.height() - focus_border_insets.height());
     if (!dry_run) {
       label->SetBoundsRect(gfx::Rect(
           gfx::Point(GetInsets().left() + x - focus_border_insets.left(),
-                     GetInsets().top() + line * line_height -
+                     GetInsets().top() + GetOffsetForLine(line) -
                          focus_border_insets.top()),
           view_size));
       AddChildView(label.release());
@@ -309,7 +316,22 @@ gfx::Size StyledLabel::CalculateAndDoLayout(int width, bool dry_run) {
     remaining_string = remaining_string.substr(chunk.size());
   }
 
-  return gfx::Size(width, (line + 1) * line_height + GetInsets().height());
+  return gfx::Size(
+      width,
+      (line + 1) * line_height  + GetInsets().height());
+}
+
+int StyledLabel::GetLineHeight() const {
+  return CalculateLineHeight(font_list_) * line_height_multiplier_;
+}
+
+int StyledLabel::GetOffsetForLine(int line) const {
+  int default_line_height = CalculateLineHeight(font_list_);
+  int line_height = GetLineHeight();
+
+  // Center text in the space available.
+  int interline_offset = (line_height - default_line_height) / 2;
+  return line_height * line + interline_offset;
 }
 
 }  // namespace views