rename CleanTask to Clean and ForceCleanFor to CleanCanvas as suggest…

…ed in the PR review

internal/cache/base.go

@@ -24,10 +24,10 @@ func init() {
 	}
 }
 
-// CleanTask run cache clean task, it should be called on paint events.
-func CleanTask() {
+// Clean run cache clean task, it should be called on paint events.
+func Clean() {
 	now := time.Now()
-	// do not run clean task so fast
+	// do not run clean task too fast
 	if now.Sub(lastClean) < 10*time.Second {
 		return
 	}
@@ -51,9 +51,9 @@ func CleanTask() {
 	lastClean = time.Now()
 }
 
-// ForceCleanFor forces a complete remove of all the objects that belong to the specified
+// CleanCanvas performs a complete remove of all the objects that belong to the specified
 // canvas. Usually used to free all objects from a closing windows.
-func ForceCleanFor(canvas fyne.Canvas) {
+func CleanCanvas(canvas fyne.Canvas) {
 	deletingObjs := make([]fyne.CanvasObject, 0, 50)
 
 	// find all objects that belong to the specified canvas

internal/driver/glfw/loop.go

@@ -222,7 +222,7 @@ func (d *gLDriver) startDrawThread() {
 
 					d.repaintWindow(w)
 				}
-				cache.CleanTask()
+				cache.Clean()
 			}
 		}
 	}()

internal/driver/glfw/window.go

@@ -450,7 +450,7 @@ func (w *window) Close() {
 
 	// remove all canvas objects from the cache
 	w.QueueEvent(func() {
-		cache.ForceCleanFor(w.canvas)
+		cache.CleanCanvas(w.canvas)
 	})
 
 	// trigger callbacks

internal/driver/gomobile/driver.go

@@ -262,7 +262,7 @@ func (d *mobileDriver) handlePaint(e paint.Event, w fyne.Window) {
 		d.paintWindow(w, newSize)
 		d.app.Publish()
 	}
-	cache.CleanTask()
+	cache.Clean()
 }
 
 func (d *mobileDriver) onStart() {

internal/driver/gomobile/window.go

@@ -171,7 +171,7 @@ func (w *window) Close() {
 
 	// remove all canvas objects from the cache
 	w.QueueEvent(func() {
-		cache.ForceCleanFor(w.canvas)
+		cache.CleanCanvas(w.canvas)
 	})
 
 	// Call this in a go routine, because this function could be called