Add support for blue buttons.

ui/views/controls/button/label_button.cc

Index: ui/views/controls/button/label_button.cc
diff --git a/ui/views/controls/button/label_button.cc b/ui/views/controls/button/label_button.cc
index 89ae8c351142345a5dce0cca5adea8244b4b3b7f..aaa299b3e19955bcdda9388ccbea078ff9359a36 100644
--- a/ui/views/controls/button/label_button.cc
+++ b/ui/views/controls/button/label_button.cc
@@ -26,6 +26,12 @@ const int kSpacing = 5;
 // The length of the hover fade animation.
 const int kHoverAnimationDurationMs = 170;
 
+// Blue button style default font color.
+const SkColor kBlueButtonTextColor = SK_ColorWHITE;
+
+// Blue button style default font color.

[msw, 2013/05/16 17:07:36]

you mean shadow color...

[benwells, 2013/05/17 02:24:32]

Done.

+const SkColor kBlueButtonShadowColor = SkColorSetRGB(0x53, 0x8C, 0xEA);
+
 }  // namespace
 
 namespace views {
@@ -151,6 +157,9 @@ void LabelButton::SetStyle(ButtonStyle style) {
       ui::NativeTheme::kColorId_WindowBackground);
     label_->SetShadowColors(color, color);
     label_->SetShadowOffset(0, 1);
+  } else if (style == STYLE_BLUE_BUTTON) {
+    label_->SetShadowColors(kBlueButtonShadowColor, kBlueButtonShadowColor);
+    label_->SetShadowOffset(1, 1);

[msw, 2013/05/16 17:07:36]

This should be (0, 1) like above to drop the shadow straight down.

[benwells, 2013/05/17 02:24:32]

Done.

   }
   // Invalidate the layout to pickup the new insets from the border.
   InvalidateLayout();
@@ -213,6 +222,12 @@ void LabelButton::ResetColorsFromNativeTheme() {
   constant_text_color |= (style() == STYLE_NATIVE_TEXTBUTTON &&
                           theme == ui::NativeThemeWin::instance());
 #endif
+  if (style() == STYLE_BLUE_BUTTON) {
+    colors[STATE_NORMAL] = kBlueButtonTextColor;
+    colors[STATE_DISABLED] = kBlueButtonTextColor;
+    constant_text_color = true;
+  }
+
   if (constant_text_color)
     colors[STATE_HOVERED] = colors[STATE_PRESSED] = colors[STATE_NORMAL];
 
@@ -227,7 +242,7 @@ void LabelButton::ResetColorsFromNativeTheme() {
 void LabelButton::StateChanged() {
   const gfx::Size previous_image_size(image_->GetPreferredSize());
   image_->SetImage(GetImage(state()));
-  const SkColor color = button_state_colors_[state()];
+  SkColor color = button_state_colors_[state()];
   if (state() != STATE_DISABLED && label_->enabled_color() != color)
     label_->SetEnabledColor(color);
   label_->SetEnabled(state() != STATE_DISABLED);