Use mailboxes for Canvas and WebGL

Source/core/platform/graphics/chromium/Canvas2DLayerBridge.cpp

Index: Source/core/platform/graphics/chromium/Canvas2DLayerBridge.cpp
diff --git a/Source/core/platform/graphics/chromium/Canvas2DLayerBridge.cpp b/Source/core/platform/graphics/chromium/Canvas2DLayerBridge.cpp
index 3c0b7613009186340b845e322199cbb5170b0c0e..68707e89787c9d34e32d3e195a84604aaab39313 100644
--- a/Source/core/platform/graphics/chromium/Canvas2DLayerBridge.cpp
+++ b/Source/core/platform/graphics/chromium/Canvas2DLayerBridge.cpp
@@ -213,7 +213,12 @@ bool Canvas2DLayerBridge::prepareMailbox(WebKit::WebExternalTextureMailbox* outM
     GC3Dint savedTexBinding = 0;
     m_context->getIntegerv(GraphicsContext3D::TEXTURE_BINDING_2D, &savedTexBinding);
     m_context->bindTexture(GraphicsContext3D::TEXTURE_2D, mailboxInfo->m_image->getTexture()->getTextureHandle());
+    m_context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_MAG_FILTER, GraphicsContext3D::LINEAR);
+    m_context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_MIN_FILTER, GraphicsContext3D::LINEAR);
+    m_context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_WRAP_S, GraphicsContext3D::CLAMP_TO_EDGE);
+    m_context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_WRAP_T, GraphicsContext3D::CLAMP_TO_EDGE);
     context()->produceTextureCHROMIUM(GraphicsContext3D::TEXTURE_2D, mailboxInfo->m_mailbox.name);
+    context()->flush();
     mailboxInfo->m_mailbox.syncPoint = context()->insertSyncPoint();
     m_context->bindTexture(GraphicsContext3D::TEXTURE_2D, savedTexBinding);