Added support for YUV videos to the software compositor.

cc/software_renderer.cc

Index: cc/software_renderer.cc
diff --git a/cc/software_renderer.cc b/cc/software_renderer.cc
index 7781b552fcc7ba495afd90d02c6040b9ba6e8fe3..2f42ed61d3f6dd58a382c52ada143a0c8a5c2ddf 100644
--- a/cc/software_renderer.cc
+++ b/cc/software_renderer.cc
@@ -11,18 +11,20 @@
 #include "cc/solid_color_draw_quad.h"
 #include "cc/texture_draw_quad.h"
 #include "cc/tile_draw_quad.h"
+#include "cc/video_frame_draw_quad.h"
+#include "media/filters/skcanvas_video_renderer.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "third_party/skia/include/core/SkMatrix.h"
 #include "third_party/skia/include/core/SkShader.h"
 #include "third_party/skia/include/effects/SkLayerRasterizer.h"
 #include "ui/gfx/rect_conversions.h"
+#include <public/WebCompositorSoftwareOutputDevice.h>
 #include <public/WebImage.h>
 #include <public/WebSize.h>
 #include <public/WebTransformationMatrix.h>
 
 using WebKit::WebCompositorSoftwareOutputDevice;
-using WebKit::WebImage;
 using WebKit::WebSize;
 using WebKit::WebTransformationMatrix;
 
@@ -215,6 +217,9 @@ void SoftwareRenderer::drawQuad(DrawingFrame& frame, const DrawQuad* quad)
     case DrawQuad::RenderPass:
         drawRenderPassQuad(frame, RenderPassDrawQuad::materialCast(quad));
         break;
+    case DrawQuad::VideoFrameContent:
+        drawVideoFrameQuad(frame, VideoFrameDrawQuad::materialCast(quad));
+        break;
     default:
         drawUnsupportedQuad(frame, quad);
         break;
@@ -324,6 +329,14 @@ void SoftwareRenderer::drawRenderPassQuad(const DrawingFrame& frame, const Rende
     }
 }
 
+void SoftwareRenderer::drawVideoFrameQuad(const DrawingFrame& frame, const VideoFrameDrawQuad* quad)
+{
+    if (!m_videoRenderer)
+        m_videoRenderer.reset(new media::SkCanvasVideoRenderer);
+    m_videoRenderer->Paint(quad->frame(), m_skCurrentCanvas, quadVertexRect(),
+                           quad->opacity() * 255);
+}
+
 void SoftwareRenderer::drawUnsupportedQuad(const DrawingFrame& frame, const DrawQuad* quad)
 {
     m_skCurrentPaint.setColor(SK_ColorMAGENTA);