<rdar://problem/9117047>

Don't paint more than 60 times per second even when scrolling

Reviewed by Sam Weinig.

* WebView/WebClipView.mm:
(-[WebClipView _immediateScrollToPoint:]):



git-svn-id: svn://svn.chromium.org/blink/trunk@80763 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/WebKit/mac/ChangeLog

+2011-03-10  Anders Carlsson  <andersca@apple.com>
+
+        Reviewed by Sam Weinig.
+
+        <rdar://problem/9117047>
+        Don't paint more than 60 times per second even when scrolling
+
+        * WebView/WebClipView.mm:
+        (-[WebClipView _immediateScrollToPoint:]):
+
 2011-03-09  Matthew Delaney  <mdelaney@apple.com>
 
         Reviewed by Simon Fraser.

third_party/WebKit/Source/WebKit/mac/WebView/WebClipView.mm

@@ -51,6 +51,13 @@ using namespace WebCore;
 - (void)_immediateScrollToPoint:(NSPoint)newOrigin;
 @end
 
+#if !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)
+@interface NSWindow (WebNSWindowDetails)
+- (void)_disableDelayedWindowDisplay;
+- (void)_enableDelayedWindowDisplay;
+@end
+#endif
+
 @implementation WebClipView
 
 - (id)initWithFrame:(NSRect)frame
@@ -96,7 +103,17 @@ using namespace WebCore;
 - (void)_immediateScrollToPoint:(NSPoint)newOrigin
 {
     _isScrolling = YES;
+
+#if !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)
+    [[self window] _disableDelayedWindowDisplay];
+#endif
+
     [super _immediateScrollToPoint:newOrigin];
+
+#if !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)
+    [[self window] _enableDelayedWindowDisplay];
+#endif
+
     _isScrolling = NO;
 }
 #endif