Reland of [Mac][Material Design] Update bookmarks bar to Material Design.

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 6fc3859243375184d680f78c6c61eb4c1c718d2c..d635d4218c278eb3b0fbdde59c18751b811e5f5d 100644
--- a/chrome/browser/ui/cocoa/gradient_button_cell.h
+++ b/chrome/browser/ui/cocoa/gradient_button_cell.h
@@ -30,6 +30,7 @@
   // doesn't darken using the theme's "pressed" gradient. Instead uses the
   // normal un-pressed gradient.
   kStandardButtonTypeWithLimitedClickFeedback = 3,
+  kMaterialStandardButtonTypeWithLimitedClickFeedback = 4,
 };
 typedef NSInteger ButtonType;
 
@@ -106,6 +107,9 @@
 // Actually fetches current mouse position and does a hit test.
 - (BOOL)isMouseReallyInside;
 
+// Returns the offset of the start of the text in the cell.
+- (CGFloat)textStartXOffset;
+
 // Defines the top offset of text within the cell. Used by drawTitle and can
 // be overriden by objects that inherit this class for placement of text.
 - (int)verticalTextOffset;