[rAC, OSX] Use bubble windows for error messages.

chrome/browser/ui/cocoa/autofill/autofill_error_bubble_controller.mm

+// Copyright (c) 2013 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/autofill/autofill_error_bubble_controller.h"
+
+#import "chrome/browser/ui/cocoa/info_bubble_view.h"
+#import "chrome/browser/ui/cocoa/info_bubble_window.h"
+#include "skia/ext/skia_utils_mac.h"
+
+namespace {
+
+// Border inset for error label.
+const CGFloat kLabelInset = 3.0;
+
+// Imported constant from Views version. TODO(groby): Share.
+SkColor const kWarningColor = 0xffde4932;  // SkColorSetRGB(0xde, 0x49, 0x32);
+
+}  // namespace
+
+
+@implementation AutofillErrorBubbleController
+
+- (id)initWithParentWindow:(NSWindow*)parentWindow
+                   message:(NSString*)message {
+  base::scoped_nsobject<InfoBubbleWindow> window(
+      [[InfoBubbleWindow alloc] initWithContentRect:NSMakeRect(0, 0, 200, 100)
+                                          styleMask:NSBorderlessWindowMask
+                                            backing:NSBackingStoreBuffered
+                                              defer:NO]);
+  [window setAllowedAnimations:info_bubble::kAnimateNone];
+  if ((self = [super initWithWindow:window
+                       parentWindow:parentWindow
+                         anchoredAt:NSZeroPoint])) {
+    [self setShouldOpenAsKeyWindow:NO];
+    [[self bubble] setBackgroundColor:
+        gfx::SkColorToCalibratedNSColor(kWarningColor)];
+    [[self bubble] setArrowLocation:info_bubble::kTopCenter];
+    [[self bubble] setAlignment:info_bubble::kAlignArrowToAnchor];
+
+    label_.reset([[NSTextField alloc] init]);
+    [label_ setEditable:NO];
+    [label_ setBordered:NO];
+    [label_ setDrawsBackground:NO];
+    [label_ setTextColor:[NSColor whiteColor]];
+    [label_ setStringValue:message];
+    [label_ sizeToFit];
+    [label_ setFrameOrigin:NSMakePoint(kLabelInset, kLabelInset)];
+
+    [[self bubble] addSubview:label_];
+
+    NSRect windowFrame = [[self window] frame];
+    windowFrame.size = NSMakeSize(
+        NSMaxX([label_ frame]),
+        NSHeight([label_ frame]) + info_bubble::kBubbleArrowHeight);
+    windowFrame = NSInsetRect(windowFrame, -kLabelInset, -kLabelInset);
+    [[self window] setFrame:windowFrame display:NO];
+  }
+  return self;
+}
+
+@end