Mac: Accelerated views should delegate firstResponder to the RWHVMac

chrome/browser/renderer_host/render_widget_host_view_mac.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.
 
 #include <QuartzCore/QuartzCore.h>
 
 #include "chrome/browser/renderer_host/render_widget_host_view_mac.h"
 
 #include "app/app_switches.h"
 #include "app/surface/io_surface_support_mac.h"
@@ skipping 391 matching lines @@
 
 - (void)setFrame:(NSRect)frameRect {
   [self setCachedSize:frameRect.size];
   [super setFrame:frameRect];
 }
 
 - (void)setFrameSize:(NSSize)newSize {
   [self setCachedSize:newSize];
   [super setFrameSize:newSize];
 }
+
+- (BOOL)acceptsFirstResponder {
+  // Accept first responder if the first responder isn't the RWHVMac.
+  return [[self window] firstResponder] != [self superview];
+}
+
+- (BOOL)becomeFirstResponder {
+  // Delegate first responder to the RWHVMac.
+  [[self window] makeFirstResponder:[self superview]];
+  return YES;
+}
 @end
 
 // RenderWidgetHostView --------------------------------------------------------
 
 // static
 RenderWidgetHostView* RenderWidgetHostView::CreateViewForWidget(
     RenderWidgetHost* widget) {
   return new RenderWidgetHostViewMac(widget);
 }
 
@@ skipping 2101 matching lines @@
   if (!string) return NO;
 
   // If the user is currently using an IME, confirm the IME input,
   // and then insert the text from the service, the same as TextEdit and Safari.
   [self confirmComposition];
   [self insertText:string];
   return YES;
 }
 
 @end