Initial import attempt, just to play with. Many things disabled/removed

ui/cc/TextureLayerChromium.cpp

Index: ui/cc/TextureLayerChromium.cpp
diff --git a/ui/cc/TextureLayerChromium.cpp b/ui/cc/TextureLayerChromium.cpp
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index 0000000000000000000000000000000000000000..0288672f0f96845aa5fee6016c0ce9251116aabc
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+++ b/ui/cc/TextureLayerChromium.cpp
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+/*
+ * Copyright (C) 2010 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:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS 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 APPLE OR ITS 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"
+
+#if USE(ACCELERATED_COMPOSITING)
+
+#include "TextureLayerChromium.h"
+
+#include "cc/CCLayerTreeHost.h"
+#include "cc/CCTextureLayerImpl.h"
+#include <public/WebGraphicsContext3D.h>
+
+namespace WebCore {
+
+PassRefPtr<TextureLayerChromium> TextureLayerChromium::create(TextureLayerChromiumClient* client)
+{
+    return adoptRef(new TextureLayerChromium(client));
+}
+
+TextureLayerChromium::TextureLayerChromium(TextureLayerChromiumClient* client)
+    : LayerChromium()
+    , m_client(client)
+    , m_flipped(true)
+    , m_uvRect(0, 0, 1, 1)
+    , m_premultipliedAlpha(true)
+    , m_rateLimitContext(false)
+    , m_contextLost(false)
+    , m_textureId(0)
+{
+}
+
+TextureLayerChromium::~TextureLayerChromium()
+{
+    if (layerTreeHost()) {
+        if (m_textureId)
+            layerTreeHost()->acquireLayerTextures();
+        if (m_rateLimitContext && m_client)
+            layerTreeHost()->stopRateLimiter(m_client->context());
+    }
+}
+
+PassOwnPtr<CCLayerImpl> TextureLayerChromium::createCCLayerImpl()
+{
+    return CCTextureLayerImpl::create(m_layerId);
+}
+
+void TextureLayerChromium::setFlipped(bool flipped)
+{
+    m_flipped = flipped;
+    setNeedsCommit();
+}
+
+void TextureLayerChromium::setUVRect(const FloatRect& rect)
+{
+    m_uvRect = rect;
+    setNeedsCommit();
+}
+
+void TextureLayerChromium::setPremultipliedAlpha(bool premultipliedAlpha)
+{
+    m_premultipliedAlpha = premultipliedAlpha;
+    setNeedsCommit();
+}
+
+void TextureLayerChromium::setRateLimitContext(bool rateLimit)
+{
+    if (!rateLimit && m_rateLimitContext && m_client && layerTreeHost())
+        layerTreeHost()->stopRateLimiter(m_client->context());
+
+    m_rateLimitContext = rateLimit;
+}
+
+void TextureLayerChromium::setTextureId(unsigned id)
+{
+    if (m_textureId == id)
+        return;
+    if (m_textureId && layerTreeHost())
+        layerTreeHost()->acquireLayerTextures();
+    m_textureId = id;
+    setNeedsCommit();
+}
+
+void TextureLayerChromium::willModifyTexture()
+{
+    if (layerTreeHost())
+        layerTreeHost()->acquireLayerTextures();
+}
+
+void TextureLayerChromium::setNeedsDisplayRect(const FloatRect& dirtyRect)
+{
+    LayerChromium::setNeedsDisplayRect(dirtyRect);
+
+    if (m_rateLimitContext && m_client && layerTreeHost())
+        layerTreeHost()->startRateLimiter(m_client->context());
+}
+
+void TextureLayerChromium::setLayerTreeHost(CCLayerTreeHost* host)
+{
+    if (m_textureId && layerTreeHost() && host != layerTreeHost())
+        layerTreeHost()->acquireLayerTextures();
+    LayerChromium::setLayerTreeHost(host);
+}
+
+bool TextureLayerChromium::drawsContent() const
+{
+    return (m_client || m_textureId) && !m_contextLost && LayerChromium::drawsContent();
+}
+
+void TextureLayerChromium::update(CCTextureUpdater& updater, const CCOcclusionTracker*)
+{
+    if (m_client) {
+        m_textureId = m_client->prepareTexture(updater);
+        m_contextLost = m_client->context()->getGraphicsResetStatusARB() != GL_NO_ERROR;
+    }
+
+    m_needsDisplay = false;
+}
+
+void TextureLayerChromium::pushPropertiesTo(CCLayerImpl* layer)
+{
+    LayerChromium::pushPropertiesTo(layer);
+
+    CCTextureLayerImpl* textureLayer = static_cast<CCTextureLayerImpl*>(layer);
+    textureLayer->setFlipped(m_flipped);
+    textureLayer->setUVRect(m_uvRect);
+    textureLayer->setPremultipliedAlpha(m_premultipliedAlpha);
+    textureLayer->setTextureId(m_textureId);
+}
+
+}
+#endif // USE(ACCELERATED_COMPOSITING)