Fix detailed view padding

Modify mic slider view padding and overall detailed view padding
to bring up to spec provided in the bug.

Bug: 1086993
Change-Id: I2b8719811070234b9a06694053370bfb8c7eae82
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2464242Reviewed-by: Tim Song <tengs@chromium.org>
Commit-Queue: Ahmed Mehfooz <amehfooz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#815884}

ash/system/tray/tray_constants.h

@@ -107,7 +107,7 @@ constexpr gfx::Insets kUnifiedManagedDeviceViewPadding(0, 16, 11, 16);
 constexpr gfx::Insets kUnifiedSliderRowPadding(0, 16, 8, 16);
 constexpr gfx::Insets kUnifiedSliderBubblePadding(12, 0, 4, 0);
 constexpr gfx::Insets kUnifiedSliderPadding(0, 16);
-constexpr gfx::Insets kMicGainSliderViewPadding(0, 52, 0, 0);
+constexpr gfx::Insets kMicGainSliderViewPadding(0, 52, 8, 0);
 constexpr gfx::Insets kMicGainSliderPadding(0, 8, 0, 48);
 constexpr int kMicGainSliderViewSpacing = 8;
 
@@ -213,7 +213,8 @@ constexpr int kUnifiedUserChooserRowHeight = 64;
 constexpr int kUnifiedTopShortcutButtonDefaultSpacing = 16;
 constexpr int kUnifiedTopShortcutButtonMinSpacing = 4;
 
-// Constants used in the title row of a detailed view in UnifiedSystemTray.
+// Constants used in the detailed view in UnifiedSystemTray.
+constexpr gfx::Insets kUnifiedDetailedViewPadding(0, 0, 8, 0);
 constexpr gfx::Insets kUnifiedDetailedViewTitlePadding(0, 0, 0, 16);
 constexpr int kUnifiedDetailedViewTitleRowHeight = 64;
 

ash/system/tray/tray_detailed_view.cc

@@ -271,7 +271,7 @@ class ScrollContentsView : public views::View {
 TrayDetailedView::TrayDetailedView(DetailedViewDelegate* delegate)
     : delegate_(delegate) {
   box_layout_ = SetLayoutManager(std::make_unique<views::BoxLayout>(
-      views::BoxLayout::Orientation::kVertical));
+      views::BoxLayout::Orientation::kVertical, kUnifiedDetailedViewPadding));
   SetBackground(views::CreateSolidBackground(
       delegate_->GetBackgroundColor().value_or(SK_ColorTRANSPARENT)));
 }