[Mac][Material Design] Adjust bookmark spacing and folder menu drawing.

chrome/browser/ui/cocoa/gradient_button_cell.h

Index: chrome/browser/ui/cocoa/gradient_button_cell.h
diff --git a/chrome/browser/ui/cocoa/gradient_button_cell.h b/chrome/browser/ui/cocoa/gradient_button_cell.h
index 1c798eab8f145b0d36e6b76c588089326064160b..c495356ebfb2715513bc26efb536a0b2a01eed7e 100644
--- a/chrome/browser/ui/cocoa/gradient_button_cell.h
+++ b/chrome/browser/ui/cocoa/gradient_button_cell.h
@@ -31,6 +31,7 @@ enum {
   // normal un-pressed gradient.
   kStandardButtonTypeWithLimitedClickFeedback = 3,
   kMaterialStandardButtonTypeWithLimitedClickFeedback = 4,
+  kMaterialMenuButtonTypeWithLimitedClickFeedback = 5,
 };
 typedef NSInteger ButtonType;
 
@@ -118,6 +119,9 @@ typedef enum {
 // draw the hover (and pressed) state background path.
 - (CGFloat)hoverBackgroundVerticalOffsetInControlView:(NSView*)controlView;
 
+// Returns YES if the cell's tag indicates a Material Design button type.
+- (BOOL)isMaterialDesignButtonType;
+
 @property(assign, nonatomic) CGFloat hoverAlpha;
 
 // An image that will be drawn after the normal content of the button cell,