[Mac] Give info bubble windows a gaussian blur and a smaller border radius.

BUG=none
TEST=Visual. Bubbles look more up-to-date on later OSes.


Review URL: http://codereview.chromium.org/10272035

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@134795 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/ui/cocoa/browser/avatar_menu_bubble_controller.mm

@@ -467,11 +467,11 @@ const CGFloat kLabelInset = 49.0;
                                                  blue:246.0/255
                                                 alpha:1.0];
   } else {
-    backgroundColor = [NSColor whiteColor];
+    backgroundColor = [NSColor clearColor];
   }
 
   [backgroundColor set];
-  NSRectFill([self bounds]);
+  [NSBezierPath fillRect:[self bounds]];
 }
 
 // Make sure the element is focusable for accessibility.

chrome/browser/ui/cocoa/info_bubble_view.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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.
 
@@ -12,7 +12,7 @@ namespace info_bubble {
 
 const CGFloat kBubbleArrowHeight = 8.0;
 const CGFloat kBubbleArrowWidth = 15.0;
-const CGFloat kBubbleCornerRadius = 8.0;
+const CGFloat kBubbleCornerRadius = 2.0;
 const CGFloat kBubbleArrowXOffset = kBubbleArrowWidth + kBubbleCornerRadius;
 
 enum BubbleArrowLocation {

chrome/browser/ui/cocoa/info_bubble_view.mm

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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.
 
@@ -62,7 +62,7 @@
   [bezier lineToPoint:NSMakePoint(arrowStart.x + info_bubble::kBubbleArrowWidth,
                                   arrowStart.y)];
   [bezier closePath];
-  [[NSColor whiteColor] set];
+  [[NSColor colorWithCalibratedWhite:1.0 alpha:0.9] set];
   [bezier fill];
 }
 

chrome/browser/ui/cocoa/info_bubble_window.mm

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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.
 
@@ -6,6 +6,7 @@
 
 #include "base/basictypes.h"
 #include "base/logging.h"
+#include "base/mac/foundation_util.h"
 #include "base/memory/scoped_nsobject.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
@@ -22,9 +23,28 @@ const NSTimeInterval kOrderOutAnimationDuration = 0.15;
 // animation as quickly as possible.
 const NSTimeInterval kMinimumTimeInterval =
     std::numeric_limits<NSTimeInterval>::min();
-}
-
-@interface InfoBubbleWindow(Private)
+}  // namespace
+
+// Forward declare private window server functions used to style the window.
+extern "C" {
+typedef int CGSConnection;
+typedef int CGSWindow;
+typedef void* CGSWindowFilterRef;
+
+CGSConnection _CGSDefaultConnection();
+CGError CGSNewCIFilterByName(CGSConnection cid,
+                             CFStringRef filterName,
+                             CGSWindowFilterRef *outFilter);
+CGError CGSAddWindowFilter(CGSConnection cid,
+                           CGSWindow wid,
+                           CGSWindowFilterRef filter,
+                           int flags);
+CGError CGSReleaseCIFilter(CGSConnection cid, CGSWindowFilterRef filter);
+CGError CGSSetCIFilterValuesFromDictionary(
+    CGSConnection cid, CGSWindowFilterRef filter, CFDictionaryRef filterValues);
+}  // extern "C"
+
+@interface InfoBubbleWindow (Private)
 - (void)appIsTerminating;
 - (void)finishCloseAfterAnimation;
 @end
@@ -202,6 +222,23 @@ class AppNotificationBridge : public content::NotificationObserver {
     newOrigin.y += kOrderInSlideOffset;
     [self setFrameOrigin:newOrigin];
 
+    // Add a gaussian blur to the window.
+    CGSConnection cgsConnection = _CGSDefaultConnection();
+    CGSWindowFilterRef filter;
+    if (CGSNewCIFilterByName(cgsConnection, CFSTR("CIGaussianBlur"),
+                             &filter) == kCGErrorSuccess) {
+      NSDictionary* blurOptions =
+          [NSDictionary dictionaryWithObject:[NSNumber numberWithFloat:1.5]
+                                      forKey:@"inputRadius"];
+
+      if (CGSSetCIFilterValuesFromDictionary(cgsConnection, filter,
+              base::mac::NSToCFCast(blurOptions)) == kCGErrorSuccess) {
+        CGSAddWindowFilter(cgsConnection, [self windowNumber], filter, 1);
+      }
+
+      CGSReleaseCIFilter(cgsConnection, filter);
+    }
+
     // Apply animations to show and move self.
     [NSAnimationContext beginGrouping];
     // The star currently triggers on mouse down, not mouse up.