Add MD ink drop ripple to shelf app items

ash/shelf/overflow_button.cc

Index: ash/shelf/overflow_button.cc
diff --git a/ash/shelf/overflow_button.cc b/ash/shelf/overflow_button.cc
index 3602ae1fcf76deaad4fdf8df504482f4b4135549..fdc94a766e8c9a9369753d18328c7fda79dfc27c 100644
--- a/ash/shelf/overflow_button.cc
+++ b/ash/shelf/overflow_button.cc
@@ -9,6 +9,7 @@
 #include "ash/common/shelf/shelf_constants.h"
 #include "ash/shelf/shelf.h"
 #include "ash/shelf/shelf_layout_manager.h"
+#include "ash/shelf/shelf_view.h"
 #include "ash/shelf/shelf_widget.h"
 #include "grit/ash_resources.h"
 #include "grit/ash_strings.h"
@@ -26,8 +27,8 @@
 
 namespace ash {
 
-OverflowButton::OverflowButton(views::ButtonListener* listener, Shelf* shelf)
-    : CustomButton(listener), bottom_image_(nullptr), shelf_(shelf) {
+OverflowButton::OverflowButton(ShelfView* shelf_view)
+    : CustomButton(nullptr), bottom_image_(nullptr), shelf_view_(shelf_view) {
   ui::ResourceBundle* rb = &ui::ResourceBundle::GetSharedInstance();
   bottom_image_ = rb->GetImageNamed(IDR_ASH_SHELF_OVERFLOW).ToImageSkia();
 
@@ -47,12 +48,17 @@ void OverflowButton::OnPaint(gfx::Canvas* canvas) {
   PaintForeground(canvas, bounds);
 }
 
+void OverflowButton::NotifyClick(const ui::Event& event) {
+  CustomButton::NotifyClick(event);
+  shelf_view_->ButtonPressed(this, event, ink_drop());
+}
+
 void OverflowButton::PaintBackground(gfx::Canvas* canvas,
                                      const gfx::Rect& bounds) {
   if (MaterialDesignController::IsShelfMaterial()) {
     SkColor color = SK_ColorTRANSPARENT;
-    ShelfWidget* shelf_widget = shelf_->shelf_widget();
-    if (shelf_->IsShowingOverflowBubble()) {
+    ShelfWidget* shelf_widget = shelf_view_->shelf()->shelf_widget();
+    if (shelf_view_->shelf()->IsShowingOverflowBubble()) {
       // TODO(bruthig|mohsen): Use of this color is temporary. Draw the active
       // state using the material design ripple animation.
       color = SK_ColorBLUE;
@@ -82,7 +88,7 @@ void OverflowButton::PaintForeground(gfx::Canvas* canvas,
                                      const gfx::Rect& bounds) {
   const gfx::ImageSkia* image = nullptr;
 
-  switch(shelf_->alignment()) {
+  switch (shelf_view_->shelf()->alignment()) {
     case SHELF_ALIGNMENT_LEFT:
       if (left_image_.isNull()) {
         left_image_ = gfx::ImageSkiaOperations::CreateRotatedImage(
@@ -108,15 +114,15 @@ void OverflowButton::PaintForeground(gfx::Canvas* canvas,
 }
 
 int OverflowButton::NonMaterialBackgroundImageId() {
-  if (shelf_->IsShowingOverflowBubble())
+  if (shelf_view_->shelf()->IsShowingOverflowBubble())
     return IDR_AURA_NOTIFICATION_BACKGROUND_PRESSED;
-  else if (shelf_->shelf_widget()->GetDimsShelf())
+  else if (shelf_view_->shelf()->shelf_widget()->GetDimsShelf())
     return IDR_AURA_NOTIFICATION_BACKGROUND_ON_BLACK;
   return IDR_AURA_NOTIFICATION_BACKGROUND_NORMAL;
 }
 
 gfx::Rect OverflowButton::CalculateButtonBounds() {
-  ShelfAlignment alignment = shelf_->alignment();
+  ShelfAlignment alignment = shelf_view_->shelf()->alignment();
   gfx::Rect bounds(GetContentsBounds());
   if (!MaterialDesignController::IsShelfMaterial()) {
     ResourceBundle& rb = ResourceBundle::GetSharedInstance();