Send size to NativeViewportClient::OnCreated instead of GLES2Client::DidCreateContext

mojo/services/native_viewport/native_viewport_mac.mm

 // Copyright 2013 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 "mojo/services/native_viewport/native_viewport.h"
 
 #import <AppKit/NSApplication.h>
 #import <AppKit/NSView.h>
 #import <AppKit/NSWindow.h>
 
@@ skipping 20 matching lines @@
   virtual void Init(const gfx::Rect& bounds) OVERRIDE {
     [NSApplication sharedApplication];
 
     rect_ = bounds;
     window_ = [[NSWindow alloc]
                   initWithContentRect:NSRectFromCGRect(rect_.ToCGRect())
                             styleMask:NSTitledWindowMask
                               backing:NSBackingStoreBuffered
                                 defer:NO];
     delegate_->OnAcceleratedWidgetAvailable([window_ contentView]);
+    delegate_->OnBoundsChanged(rect_);
   }
 
   virtual void Show() OVERRIDE {
     [window_ orderFront:nil];
   }
 
   virtual void Close() OVERRIDE {
     // TODO(beng): perform this in response to NSWindow destruction.
     delegate_->OnDestroyed();
   }
@@ skipping 23 matching lines @@
 
 // static
 scoped_ptr<NativeViewport> NativeViewport::Create(
     shell::Context* context,
     NativeViewportDelegate* delegate) {
   return scoped_ptr<NativeViewport>(new NativeViewportMac(delegate)).Pass();
 }
 
 }  // namespace services
 }  // namespace mojo