[Mac] RTL aware drawing for the security bubble hover background

chrome/browser/ui/cocoa/location_bar/bubble_decoration.mm

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <cmath>
 
 #import "chrome/browser/ui/cocoa/location_bar/bubble_decoration.h"
 
 #include "base/logging.h"
 #include "base/mac/foundation_util.h"
@@ skipping 84 matching lines @@
 
   const CGFloat image_width = GetWidthForImageAndLabel(image_, nil);
   if (image_width <= width)
     return image_width;
 
   return kOmittedWidth;
 }
 
 NSRect BubbleDecoration::GetBackgroundFrame(NSRect frame) {
   NSRect background_frame = NSInsetRect(frame, 0.0, kBackgroundFrameYInset);
-  background_frame.origin.x += kBackgroundFrameLeftMargin;
-  background_frame.size.width -= kDividerPadding;
+  if (cocoa_l10n_util::ShouldDoExperimentalRTLLayout()) {
+    background_frame.origin.x += kDividerPadding;
+    background_frame.size.width -= kDividerPadding + kBackgroundFrameLeftMargin;
+  } else {
+    background_frame.origin.x += kBackgroundFrameLeftMargin;
+    background_frame.size.width -= kDividerPadding;
+  }
   return background_frame;
 }
 
 void BubbleDecoration::DrawInFrame(NSRect frame, NSView* control_view) {
   const NSRect decoration_frame = NSInsetRect(frame, 0.0, kImageFrameYInset);
   CGFloat text_left_offset = NSMinX(decoration_frame);
   CGFloat text_right_offset = NSMaxX(decoration_frame);
   const BOOL is_rtl = cocoa_l10n_util::ShouldDoExperimentalRTLLayout();
 
   if (image_) {
@@ skipping 80 matching lines @@
   [attributes_ setObject:text_color forKey:NSForegroundColorAttributeName];
 }
 
 void BubbleDecoration::SetFont(NSFont* font) {
   [attributes_ setObject:font forKey:NSFontAttributeName];
 }
 
 void BubbleDecoration::SetRetinaBaselineOffset(CGFloat offset) {
   retina_baseline_offset_ = offset;
 }