[Mac] Adjust toolbar spacing of browser actions for M6.

chrome/browser/cocoa/extensions/browser_actions_container_view.mm

Index: chrome/browser/cocoa/extensions/browser_actions_container_view.mm
diff --git a/chrome/browser/cocoa/extensions/browser_actions_container_view.mm b/chrome/browser/cocoa/extensions/browser_actions_container_view.mm
index 234ed6cca28dc361d29f8ecdcde14e0da8706f59..56dbcec01c6d143fa059782cebea1e7dcf2c2b0e 100644
--- a/chrome/browser/cocoa/extensions/browser_actions_container_view.mm
+++ b/chrome/browser/cocoa/extensions/browser_actions_container_view.mm
@@ -19,13 +19,8 @@ NSString* const kBrowserActionGrippyDragFinishedNotification =
 
 namespace {
 const CGFloat kAnimationDuration = 0.2;
-const CGFloat kGrippyWidth = 8.0;
-const CGFloat kLowerPadding = 6.0;
+const CGFloat kGrippyWidth = 4.0;
 const CGFloat kMinimumContainerWidth = 10.0;
-const CGFloat kRightBorderXOffset = -1.0;
-const CGFloat kRightBorderWidth = 1.0;
-const CGFloat kRightBorderGrayscale = 0.5;
-const CGFloat kUpperPadding = 9.0;
 }  // namespace
 
 @interface BrowserActionsContainerView(Private)
@@ -57,24 +52,6 @@ const CGFloat kUpperPadding = 9.0;
   return self;
 }
 
-- (void)drawRect:(NSRect)dirtyRect {
-  NSRect bounds = [self bounds];
-  NSColor* middleColor =
-     [NSColor colorWithCalibratedWhite:kRightBorderGrayscale alpha:1.0];
-  NSColor* endPointColor =
-     [NSColor colorWithCalibratedWhite:kRightBorderGrayscale alpha:0.0];
-  scoped_nsobject<NSGradient> borderGradient([[NSGradient alloc]
-     initWithColorsAndLocations:endPointColor, (CGFloat)0.0,
-                                middleColor, (CGFloat)0.5,
-                                endPointColor, (CGFloat)1.0,
-                                nil]);
-  CGFloat xPos = bounds.origin.x + bounds.size.width - kRightBorderWidth +
-     kRightBorderXOffset;
-  NSRect borderRect = NSMakeRect(xPos, kLowerPadding, kRightBorderWidth,
-     bounds.size.height - kUpperPadding);
-  [borderGradient drawInRect:borderRect angle:90.0];
-}
-
 - (void)setResizable:(BOOL)resizable {
   if (resizable == resizable_)
     return;