Move the WebPluginResourceClient interface to its own header. Also fix up method order in webplugin…

content/child/npapi/webplugin_delegate_impl_mac.mm

 // 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.
 
 #include "content/child/npapi/webplugin_delegate_impl.h"
 
 #import <Cocoa/Cocoa.h>
 #import <QuartzCore/QuartzCore.h>
 #include <unistd.h>
 
@@ skipping 257 matching lines @@
   layer_ = nil;
 }
 
 void WebPluginDelegateImpl::UpdateGeometryAndContext(
     const gfx::Rect& window_rect, const gfx::Rect& clip_rect,
     CGContextRef context) {
   buffer_context_ = context;
   UpdateGeometry(window_rect, clip_rect);
 }
 
-void WebPluginDelegateImpl::Paint(WebKit::WebCanvas* canvas,
-                                  const gfx::Rect& rect) {
+void WebPluginDelegateImpl::Paint(SkCanvas* canvas, const gfx::Rect& rect) {
   gfx::SkiaBitLocker bit_locker(canvas);
   CGContextRef context = bit_locker.cgContext();
   CGPaint(context, rect);
 }
 
 void WebPluginDelegateImpl::CGPaint(CGContextRef context,
                                     const gfx::Rect& rect) {
   WindowlessPaint(context, rect);
 }
 
@@ skipping 429 matching lines @@
                               window_rect_.width(), window_rect_.height())];
   [CATransaction commit];
 
   [renderer_ setBounds:[layer_ bounds]];
   surface_->SetSize(window_rect_.size());
   // Kick off the drawing timer, if necessary.
   PluginVisibilityChanged();
 }
 
 }  // namespace content