Adding support for per vertex opacity on textured layer

cc/heads_up_display_layer_impl.cc

Index: cc/heads_up_display_layer_impl.cc
diff --git a/cc/heads_up_display_layer_impl.cc b/cc/heads_up_display_layer_impl.cc
index 4ef5b971894b1cb5c48cb9140b4363ca621482ba..73f99d01c29be4b3c317390d9e4c0331ff8fe6ee 100644
--- a/cc/heads_up_display_layer_impl.cc
+++ b/cc/heads_up_display_layer_impl.cc
@@ -91,9 +91,10 @@ void HeadsUpDisplayLayerImpl::appendQuads(QuadSink& quadSink, AppendQuadsData& a
     gfx::Rect opaqueRect(contentsOpaque() ? quadRect : gfx::Rect());
     bool premultipliedAlpha = true;
     gfx::RectF uvRect(0, 0, 1, 1);
+    const float vertex_opacity[] = {1.0f, 1.0f, 1.0f, 1.0f};
     bool flipped = false;
     scoped_ptr<TextureDrawQuad> quad = TextureDrawQuad::Create();
-    quad->SetNew(sharedQuadState, quadRect, opaqueRect, m_hudTexture->id(), premultipliedAlpha, uvRect, flipped);
+    quad->SetNew(sharedQuadState, quadRect, opaqueRect, m_hudTexture->id(), premultipliedAlpha, uvRect, vertex_opacity, flipped);
     quadSink.append(quad.PassAs<DrawQuad>(), appendQuadsData);
 }