[Android] Allow specifying the progress component of the toolbar as a separate texture.

chrome/browser/android/compositor/layer/toolbar_layer.h

Index: chrome/browser/android/compositor/layer/toolbar_layer.h
diff --git a/chrome/browser/android/compositor/layer/toolbar_layer.h b/chrome/browser/android/compositor/layer/toolbar_layer.h
index 7440ef85d3532cffe4ccb50970e9c6a2596fdac3..cb468944455ac9b634f9cba868bb988f6006b1e5 100644
--- a/chrome/browser/android/compositor/layer/toolbar_layer.h
+++ b/chrome/browser/android/compositor/layer/toolbar_layer.h
@@ -28,6 +28,14 @@ class ToolbarLayer : public Layer {
   scoped_refptr<cc::Layer> layer() override;
 
   void PushResource(ui::ResourceManager::Resource* resource,
+                    ui::ResourceManager::Resource* progress_resource,
+                    bool anonymize,
+                    bool anonymize_component_is_incognito,
+                    bool show_debug);
+
+  // TODO(tedchoc): Remove after migrating downstream to signature that takes
+  //                the progress_resource.
+  void PushResource(ui::ResourceManager::Resource* resource,
                     bool anonymize,
                     bool anonymize_component_is_incognito,
                     bool show_debug);
@@ -39,6 +47,7 @@ class ToolbarLayer : public Layer {
  private:
   scoped_refptr<cc::Layer> layer_;
   scoped_refptr<cc::UIResourceLayer> bitmap_layer_;
+  scoped_refptr<cc::UIResourceLayer> progress_layer_;
   scoped_refptr<cc::SolidColorLayer> anonymize_layer_;
   scoped_refptr<cc::SolidColorLayer> debug_layer_;