ui/gfx: Rename almost all entries from gfx::CanvasSkia to gfx::Canvas.

ui/views/controls/glow_hover_controller.cc

Index: ui/views/controls/glow_hover_controller.cc
diff --git a/ui/views/controls/glow_hover_controller.cc b/ui/views/controls/glow_hover_controller.cc
index d175b10caa411788e78082a665d366b6bae0ec15..c998f340a18f16a4a9b98558c28e1bc83ab16012 100644
--- a/ui/views/controls/glow_hover_controller.cc
+++ b/ui/views/controls/glow_hover_controller.cc
@@ -69,8 +69,8 @@ void GlowHoverController::Draw(gfx::Canvas* canvas,
     return;
 
   // Draw a radial gradient to hover_canvas.
-  gfx::CanvasSkia hover_canvas(
-      gfx::Size(mask_image.width(), mask_image.height()), false);
+  gfx::Canvas hover_canvas(gfx::Size(mask_image.width(), mask_image.height()),
+                           false);
 
   // Draw a radial gradient to hover_canvas.
   int radius = view_->width() / 3;