Adjust locationbar text vertical position under Material Design.

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

 // Copyright (c) 2011 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.
 
 #import "chrome/browser/ui/cocoa/location_bar/autocomplete_text_field.h"
 
 #include "base/logging.h"
 #import "base/mac/mac_util.h"
 #import "base/mac/sdk_forward_declarations.h"
 #include "chrome/browser/themes/theme_service.h"
 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
 #import "chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_cell.h"
 #import "chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_editor.h"
 #import "chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h"
 #import "chrome/browser/ui/cocoa/toolbar/toolbar_controller.h"
 #import "chrome/browser/ui/cocoa/url_drop_target.h"
 #import "chrome/browser/ui/cocoa/view_id_util.h"
+#import "ui/base/cocoa/nsview_additions.h"
 #include "ui/base/material_design/material_design_controller.h"
 #include "ui/gfx/scoped_ns_graphics_context_save_gstate_mac.h"
 
 namespace {
 const CGFloat kAnimationDuration = 0.2;
 }
 
 @implementation AutocompleteTextField
 
 @synthesize observer = observer_;
@@ skipping 326 matching lines @@
 
 - (void)viewWillMoveToWindow:(NSWindow*)newWindow {
   if ([self window]) {
     NSNotificationCenter* nc = [NSNotificationCenter defaultCenter];
     [nc removeObserver:self
                   name:NSWindowDidResignKeyNotification
                 object:[self window]];
     [nc removeObserver:self
                   name:NSWindowDidResizeNotification
                 object:[self window]];
+    [nc removeObserver:self
+                  name:NSWindowDidChangeScreenNotification
+                object:[self window]];
   }
 }
 
+- (void)windowDidChangeScreen {
+  // Inform the AutocompleteTextFieldCell's of the coordinate system line
+  // width needed to draw a single-pixel line. This value changes as we move
+  // between Retina and non-Retina displays.
+  [[self cell] setSinglePixelLineWidth:[self cr_lineWidth]];
+  [self setNeedsDisplay];
+}
+
 - (void)viewDidMoveToWindow {
   if (![self window]) {
     return;
   }
 
   // Invert the textfield's colors when Material Design and Incognito and not
   // a custom theme.
   if (ui::MaterialDesignController::IsModeMaterial() &&
       [[self window] inIncognitoModeWithSystemTheme]) {
     [self setTextColor:[NSColor whiteColor]];
     [self setBackgroundColor:
         [NSColor colorWithCalibratedWhite:115 / 255. alpha:1]];
   }
 
   NSNotificationCenter* nc = [NSNotificationCenter defaultCenter];
   [nc addObserver:self
          selector:@selector(windowDidResignKey:)
              name:NSWindowDidResignKeyNotification
            object:[self window]];
   [nc addObserver:self
          selector:@selector(windowDidResize:)
              name:NSWindowDidResizeNotification
            object:[self window]];
+  [nc addObserver:self
+         selector:@selector(windowDidChangeScreen)
+             name:NSWindowDidChangeScreenNotification
+           object:[self window]];
+
+  // Make sure the cell has the current line width.
+  [[self cell] setSinglePixelLineWidth:[self cr_lineWidth]];
+
   // Only register for drops if not in a popup window. Lazily create the
   // drop handler when the type of window is known.
   BrowserWindowController* windowController =
       [BrowserWindowController browserWindowControllerForView:self];
   if ([windowController isTabbedWindow])
       dropHandler_.reset([[URLDropTargetHandler alloc] initWithView:self]);
 }
 
 // NSTextField becomes first responder by installing a "field editor"
 // subview.  Clicks outside the field editor (such as a decoration)
@@ skipping 133 matching lines @@
                                   NSMinY(frame),
                                   suggestWidth,
                                   NSHeight(frame));
 
   gfx::ScopedNSGraphicsContextSaveGState saveGState;
   NSRectClip(suggestRect);
   [cell drawInteriorWithFrame:frame inView:controlView];
 }
 
 }  // namespace autocomplete_text_field