This CL implements the first draft of Canvas 2D Context Attributes, aka getContext('2d', { alpha: f…

Source/core/html/canvas/Canvas2DContextAttributes.cpp

 /*
- * Copyright (C) 2011 Google Inc. All rights reserved.
+ * Copyright (c) 2013, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
- *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
  * copyright notice, this list of conditions and the following disclaimer
  * in the documentation and/or other materials provided with the
  * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 
-#include "modules/quota/StorageQuota.h"
+#include "Canvas2DContextAttributes.h"
 
 namespace WebCore {
 
-StorageQuota::StorageQuota(Type type)
-    : m_type(type)
+Canvas2DContextAttributes::Canvas2DContextAttributes()
+    : m_alpha(true)
 {
 }
 
-StorageQuota::~StorageQuota()
+Canvas2DContextAttributes::~Canvas2DContextAttributes()
 {
 }
 
+PassRefPtr<Canvas2DContextAttributes> Canvas2DContextAttributes::create()
+{
+    return adoptRef(new Canvas2DContextAttributes());
+}
+
+bool Canvas2DContextAttributes::alpha() const
+{
+    return m_alpha;
+}
+
+void Canvas2DContextAttributes::setAlpha(bool alpha)
+{
+    m_alpha = alpha;
+}
+
 } // namespace WebCore