WIP GPU scheduler + delayed activation / tile draw

cc/tiles/tile_draw_info.h

Index: cc/tiles/tile_draw_info.h
diff --git a/cc/tiles/tile_draw_info.h b/cc/tiles/tile_draw_info.h
index a51d27b9916df2e3b6aa73c0983f9f95f2005d5d..2ca0c3207e875fe1dfc86fd2dd64f3cda58b6497 100644
--- a/cc/tiles/tile_draw_info.h
+++ b/cc/tiles/tile_draw_info.h
@@ -27,7 +27,7 @@ class CC_EXPORT TileDrawInfo {
   bool IsReadyToDraw() const {
     switch (mode_) {
       case RESOURCE_MODE:
-        return !!resource_;
+        return ready_to_draw_;
       case SOLID_COLOR_MODE:
       case OOM_MODE:
         return true;
@@ -35,10 +35,11 @@ class CC_EXPORT TileDrawInfo {
     NOTREACHED();
     return false;
   }
+
   bool NeedsRaster() const {
     switch (mode_) {
       case RESOURCE_MODE:
-        return !resource_;
+        return !ready_to_draw_;
       case SOLID_COLOR_MODE:
         return false;
       case OOM_MODE:
@@ -71,9 +72,9 @@ class CC_EXPORT TileDrawInfo {
     return mode_ == RESOURCE_MODE || mode_ == OOM_MODE;
   }
 
-  inline bool has_resource() const { return !!resource_; }
+  bool has_resource() const { return !!resource_; }
 
-  inline bool has_compressed_resource() const {
+  bool has_compressed_resource() const {
     return resource_ ? IsResourceFormatCompressed(resource_->format()) : false;
   }
 
@@ -91,6 +92,11 @@ class CC_EXPORT TileDrawInfo {
 
   void set_use_resource() { mode_ = RESOURCE_MODE; }
 
+  void set_resource(Resource* resource) {
+    DCHECK_EQ(RESOURCE_MODE, mode_);
+    resource_ = resource;
+  }
+
   void set_solid_color(const SkColor& color) {
     mode_ = SOLID_COLOR_MODE;
     solid_color_ = color;
@@ -98,9 +104,18 @@ class CC_EXPORT TileDrawInfo {
 
   void set_oom() { mode_ = OOM_MODE; }
 
+  void set_ready_to_draw(bool ready_to_draw) { ready_to_draw_ = ready_to_draw; }
+
+  void set_contents_swizzled(bool contents_swizzled) {
+    contents_swizzled_ = contents_swizzled;
+  }
+
+  Resource* resource() const { return resource_; }
+
   Mode mode_;
   SkColor solid_color_;
   Resource* resource_;
+  bool ready_to_draw_;
   bool contents_swizzled_;
 
   // Used for gathering UMA stats.