Update Panel titlebar text and icon layout when resized on Mac.

chrome/browser/ui/panels/panel_browser_window_cocoa_unittest.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/panels/panel_browser_window_cocoa.h"
 
 #include <Carbon/Carbon.h>
 #import <Cocoa/Cocoa.h>
 
 #include "base/command_line.h"
@@ skipping 233 matching lines @@
       static_cast<PanelBrowserWindowCocoa*>(panel->native_panel());
   PanelTitlebarViewCocoa* titlebar = [native_window->controller_ titlebarView];
 
   NSView* contentView = [[native_window->controller_ window] contentView];
   VerifyTitlebarLocation(contentView, titlebar);
 
   // In local coordinate system, width of titlebar should match width of
   // content view of the window. They both use the same scale factor.
   EXPECT_EQ(NSWidth([contentView bounds]), NSWidth([titlebar bounds]));
 
+  NSRect oldTitleFrame = [[titlebar title] frame];
+  NSRect oldIconFrame = [[titlebar icon] frame];
+
   // Now resize the Panel, see that titlebar follows.
-  const int kDelta = 153; // random number
+  const int kDelta = 153;  // random number
   gfx::Rect bounds = panel->GetBounds();
   // Grow panel in a way so that its titlebar moves and grows.
   bounds.set_x(bounds.x() - kDelta);
   bounds.set_y(bounds.y() - kDelta);
   bounds.set_width(bounds.width() + kDelta);
   bounds.set_height(bounds.height() + kDelta);
 
   PanelAnimatedBoundsObserver bounds_observer(panel);
   native_window->SetPanelBounds(bounds);
   bounds_observer.Wait();
 
   // Verify the panel resized.
   NSRect window_frame = [[native_window->controller_ window] frame];
   EXPECT_EQ(NSWidth(window_frame), bounds.width());
   EXPECT_EQ(NSHeight(window_frame), bounds.height());
 
   // Verify the titlebar is still on top of regular titlebar.
   VerifyTitlebarLocation(contentView, titlebar);
 
+  // Verify that the title/icon frames were updated.
+  NSRect newTitleFrame = [[titlebar title] frame];
+  NSRect newIconFrame = [[titlebar icon] frame];
+
+  EXPECT_EQ(newTitleFrame.origin.x - newIconFrame.origin.x,
+            oldTitleFrame.origin.x - oldIconFrame.origin.x);
+  EXPECT_NE(newTitleFrame.origin.x, oldTitleFrame.origin.x);
+  EXPECT_NE(newIconFrame.origin.x, oldIconFrame.origin.x);
+
   ClosePanelAndWait(panel->browser());
 }
 
 // Verify closing behavior of titlebar close button.
 TEST_F(PanelBrowserWindowCocoaTest, TitlebarViewClose) {
   Panel* panel = CreateTestPanel("Test Panel");
 
   PanelBrowserWindowCocoa* native_window =
       static_cast<PanelBrowserWindowCocoa*>(panel->native_panel());
 
@@ skipping 111 matching lines @@
   NSWindow* frontmostWindow = [[NSApp orderedWindows] objectAtIndex:0];
   EXPECT_NSEQ(frontmostWindow, [native_window->controller_ window]);
 
   native_window2->ActivatePanel();
   frontmostWindow = [[NSApp orderedWindows] objectAtIndex:0];
   EXPECT_NSEQ(frontmostWindow, [native_window2->controller_ window]);
 
   ClosePanelAndWait(panel->browser());
   ClosePanelAndWait(panel2->browser());
 }