[Mac] First part of Omnibox decoration refactor. Enable ev bubble.

chrome/browser/cocoa/location_bar/ev_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.
+
+#import "chrome/browser/cocoa/location_bar/ev_bubble_decoration.h"
+
+#import "base/logging.h"
+#import "chrome/browser/cocoa/image_utils.h"
+#import "chrome/browser/cocoa/location_bar/location_icon_decoration.h"
+
+namespace {
+
+// TODO(shess): This is ugly, find a better way.  Using it right now
+// so that I can crib from gtk and still be able to see that I'm using
+// the same values easily.
+const NSColor* ColorWithRGBBytes(int rr, int gg, int bb) {
+  DCHECK_LE(rr, 255);
+  DCHECK_LE(bb, 255);
+  DCHECK_LE(gg, 255);
+  return [NSColor colorWithCalibratedRed:static_cast<float>(rr)/255.0
+                                   green:static_cast<float>(gg)/255.0
+                                    blue:static_cast<float>(bb)/255.0
+                                   alpha:1.0];
+}
+
+}  // namespace
+
+EVBubbleDecoration::EVBubbleDecoration(
+    LocationIconDecoration* location_icon,
+    NSFont* font)
+    : BubbleDecoration(font),
+      location_icon_(location_icon) {
+  // Color tuples stolen from location_bar_view_gtk.cc.
+  NSColor* border_color = ColorWithRGBBytes(0x90, 0xc3, 0x90);
+  NSColor* background_color = ColorWithRGBBytes(0xef, 0xfc, 0xef);
+  NSColor* text_color = ColorWithRGBBytes(0x07, 0x95, 0x00);
+  SetColors(border_color, background_color, text_color);
+}
+
+// Pass mouse operations through to location icon.
+bool EVBubbleDecoration::IsDraggable() {
+  return location_icon_->IsDraggable();
+}
+
+NSPasteboard* EVBubbleDecoration::GetDragPasteboard() {
+  return location_icon_->GetDragPasteboard();
+}
+
+NSImage* EVBubbleDecoration::GetDragImage() {
+  return location_icon_->GetDragImage();
+}
+
+bool EVBubbleDecoration::OnMousePressed(NSRect frame) {
+  return location_icon_->OnMousePressed(frame);
+}