Rendering context information added to SharedQuadState

cc/quads/shared_quad_state.cc

Index: cc/quads/shared_quad_state.cc
diff --git a/cc/quads/shared_quad_state.cc b/cc/quads/shared_quad_state.cc
index 444d3300bed1b9d154680131ffa632ac8992b5c7..51d18be60103cd510a6be88cf570767f61a66afb 100644
--- a/cc/quads/shared_quad_state.cc
+++ b/cc/quads/shared_quad_state.cc
@@ -11,7 +11,11 @@
 namespace cc {
 
 SharedQuadState::SharedQuadState()
-    : is_clipped(false), opacity(0.f), blend_mode(SkXfermode::kSrcOver_Mode) {}
+    : is_clipped(false),
+      opacity(0.f),
+      blend_mode(SkXfermode::kSrcOver_Mode),
+      context_id(0) {
+}
 
 SharedQuadState::~SharedQuadState() {
   TRACE_EVENT_OBJECT_DELETED_WITH_ID(
@@ -29,7 +33,8 @@ void SharedQuadState::SetAll(const gfx::Transform& content_to_target_transform,
                              const gfx::Rect& clip_rect,
                              bool is_clipped,
                              float opacity,
-                             SkXfermode::Mode blend_mode) {
+                             SkXfermode::Mode blend_mode,
+                             int context_id) {
   this->content_to_target_transform = content_to_target_transform;
   this->content_bounds = content_bounds;
   this->visible_content_rect = visible_content_rect;
@@ -37,6 +42,7 @@ void SharedQuadState::SetAll(const gfx::Transform& content_to_target_transform,
   this->is_clipped = is_clipped;
   this->opacity = opacity;
   this->blend_mode = blend_mode;
+  this->context_id = context_id;
 }
 
 scoped_ptr<base::Value> SharedQuadState::AsValue() const {