Add ManagePasswordsDecoration and unit tests.

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

Index: chrome/browser/ui/cocoa/location_bar/manage_passwords_decoration.mm
diff --git a/chrome/browser/ui/cocoa/location_bar/manage_passwords_decoration.mm b/chrome/browser/ui/cocoa/location_bar/manage_passwords_decoration.mm
new file mode 100644
index 0000000000000000000000000000000000000000..747d16870725612eae4c4b7d4c39be360bd6ccb5
--- /dev/null
+++ b/chrome/browser/ui/cocoa/location_bar/manage_passwords_decoration.mm
@@ -0,0 +1,66 @@
+// Copyright 2014 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/manage_passwords_decoration.h"
+
+#include "chrome/app/chrome_command_ids.h"
+#include "chrome/browser/command_updater.h"
+#include "chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.h"
+#include "ui/base/l10n/l10n_util_mac.h"
+
+// ManagePasswordsIconCocoa
+
+ManagePasswordsIconCocoa::ManagePasswordsIconCocoa(
+    ManagePasswordsDecoration* decoration)
+    : decoration_(decoration) {
+}
+
+ManagePasswordsIconCocoa::~ManagePasswordsIconCocoa() {
+}
+
+void ManagePasswordsIconCocoa::UpdateVisibleUI() {
+  decoration_->UpdateVisibleUI();
+}
+
+// ManagePasswordsDecoration
+
+ManagePasswordsDecoration::ManagePasswordsDecoration(
+    CommandUpdater* command_updater)
+    : command_updater_(command_updater),
+      icon_(new ManagePasswordsIconCocoa(this)) {
+  UpdateVisibleUI();
+}
+
+ManagePasswordsDecoration::~ManagePasswordsDecoration() {}
+
+NSPoint ManagePasswordsDecoration::GetBubblePointInFrame(NSRect frame) {
+  const NSRect draw_frame = GetDrawRectInFrame(frame);
+  return NSMakePoint(NSMidX(draw_frame), NSMaxY(draw_frame));
+}
+
+bool ManagePasswordsDecoration::AcceptsMousePress() {
+  return true;
+}
+
+bool ManagePasswordsDecoration::OnMousePressed(NSRect frame, NSPoint location) {
+  command_updater_->ExecuteCommand(IDC_MANAGE_PASSWORDS_FOR_PAGE);
+  return true;
+}
+
+NSString* ManagePasswordsDecoration::GetToolTip() {
+  return icon_->tooltip_text_id()
+             ? l10n_util::GetNSStringWithFixup(icon_->tooltip_text_id())
+             : nil;
+}
+
+void ManagePasswordsDecoration::UpdateVisibleUI() {
+  if (icon_->state() == password_manager::ui::INACTIVE_STATE) {
+    SetVisible(false);
+    SetImage(nil);
+    // TODO(dconnelly): Hide the bubble once it is implemented.
+    return;
+  }
+  SetVisible(true);
+  SetImage(OmniboxViewMac::ImageForResource(icon_->icon_id()));
+}