Make the screenshare notification window 85% opaque.

chrome/browser/ui/views/screen_capture_notification_ui_views.cc

 // Copyright 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.
 
 #include "chrome/browser/ui/screen_capture_notification_ui.h"
 
 #include "ash/shell.h"
 #include "chrome/app/chrome_dll_resource.h"
 #include "chrome/browser/ui/views/chrome_views_export.h"
 #include "grit/generated_resources.h"
@@ skipping 17 matching lines @@
 #include "ui/views/win/hwnd_util.h"
 #endif
 
 namespace {
 
 const int kMinimumWidth = 460;
 const int kMaximumWidth = 1000;
 const int kHorizontalMargin = 10;
 const int kPadding = 5;
 const int kPaddingLeft = 10;
+const float kWindowAlphaValue = 0.85f;
 
 namespace {
 
 // A ClientView that overrides NonClientHitTest() so that the whole window area
 // acts as a window caption, except a rect specified using SetClientRect().
 // ScreenCaptureNotificationUIViews uses this class to make the notification bar
 // draggable.
 class NotificationBarClientView : public views::ClientView {
  public:
   NotificationBarClientView(views::Widget* widget, views::View* view)
@@ skipping 152 matching lines @@
   // per-display screen capture is supported.
   gfx::Rect work_area = screen->GetPrimaryDisplay().work_area();
 
   // Place the bar in the center of the bottom of the display.
   gfx::Size size = widget->non_client_view()->GetPreferredSize();
   gfx::Rect bounds(
       work_area.x() + work_area.width() / 2 - size.width() / 2,
       work_area.y() + work_area.height() - size.height(),
       size.width(), size.height());
   widget->SetBounds(bounds);
-
+  widget->SetOpacity(0xFF * kWindowAlphaValue);
   widget->Show();
 
 #if defined(OS_WIN)
   return gfx::NativeViewId(views::HWNDForWidget(widget));
 #else
   return 0;
 #endif
 }
 
 gfx::Size ScreenCaptureNotificationUIViews::GetPreferredSize() {
@@ skipping 105 matching lines @@
   }
 }
 
 }  // namespace
 
 scoped_ptr<ScreenCaptureNotificationUI> ScreenCaptureNotificationUI::Create(
     const base::string16& text) {
   return scoped_ptr<ScreenCaptureNotificationUI>(
       new ScreenCaptureNotificationUIViews(text));
 }