Mac: Unregress right-clicks for CoreAnimation plugins.

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/surface/io_surface_support_mac.h"
 #import "base/chrome_application_mac.h"
@@ skipping 219 matching lines @@
       cglContext_, pluginHandle_);
 
   CGLFlushDrawable(cglContext_);
   CGLUnlockContext(cglContext_);
 }
 
 - (void)drawRect:(NSRect)rect {
   [self drawView];
 }
 
+- (void)rightMouseDown:(NSEvent*)event {
+  // The NSResponder documentation: "Note: The NSView implementation of this
+  // method does not pass the message up the responder chain, it handles it
+  // directly."
+  // That's bad, we want the next responder (RWHVMac) to handle this event to
+  // dispatch it to the renderer.
+  [[self nextResponder] rightMouseDown:event];
+}
+
 - (void)globalFrameDidChange:(NSNotification*)notification {
   CGLLockContext(cglContext_);
   [glContext_ update];
 
   // You would think that -update updates the viewport. You would be wrong.
   CGLSetCurrentContext(cglContext_);
   NSSize size = [self frame].size;
   glViewport(0, 0, size.width, size.height);
 
   CGLUnlockContext(cglContext_);
@@ skipping 2036 matching lines @@
   NSArray* toDeclare = [NSArray arrayWithObject:NSStringPboardType];
   [pboard declareTypes:toDeclare owner:nil];
   return [pboard setString:text forType:NSStringPboardType];
 }
 
 - (BOOL)readSelectionFromPasteboard:(NSPasteboard*)pboard {
   return NO;
 }
 
 @end