[devtools] Support different encodings for Page.CaptureScreenshot.

ui/snapshot/snapshot_aura.cc

Index: ui/snapshot/snapshot_aura.cc
diff --git a/ui/snapshot/snapshot_aura.cc b/ui/snapshot/snapshot_aura.cc
index d2df3f08f2aee04e22bc93ee62bd50ef7a0a145c..19e2f1c309ee566c2f17ae72742ffb4bbf64c684 100644
--- a/ui/snapshot/snapshot_aura.cc
+++ b/ui/snapshot/snapshot_aura.cc
@@ -22,13 +22,13 @@
 namespace ui {
 
 bool GrabViewSnapshot(gfx::NativeView view,
-                      std::vector<unsigned char>* png_representation,
+                      gfx::Image* image,
                       const gfx::Rect& snapshot_bounds) {
-  return GrabWindowSnapshot(view, png_representation, snapshot_bounds);
+  return GrabWindowSnapshot(view, image, snapshot_bounds);
 }
 
 bool GrabWindowSnapshot(gfx::NativeWindow window,
-                        std::vector<unsigned char>* png_representation,
+                        gfx::Image* image,
                         const gfx::Rect& snapshot_bounds) {
   // Not supported in Aura.  Callers should fall back to the async version.
   return false;
@@ -94,22 +94,18 @@ void GrabWindowSnapshotAndScaleAsync(
                  background_task_runner));
 }
 
-void GrabWindowSnapshotAsync(
-    gfx::NativeWindow window,
-    const gfx::Rect& source_rect,
-    scoped_refptr<base::TaskRunner> background_task_runner,
-    const GrabWindowSnapshotAsyncPNGCallback& callback) {
-  MakeInitialAsyncCopyRequest(window, source_rect,
-                              base::Bind(&SnapshotAsync::EncodeCopyOutputResult,
-                                         callback, background_task_runner));
+void GrabWindowSnapshotAsync(gfx::NativeWindow window,
+                             const gfx::Rect& source_rect,
+                             const GrabWindowSnapshotAsyncCallback& callback) {
+  MakeInitialAsyncCopyRequest(
+      window, source_rect,
+      base::Bind(&SnapshotAsync::RunCallbackWithCopyOutputResult, callback));
 }
 
-void GrabViewSnapshotAsync(
-    gfx::NativeView view,
-    const gfx::Rect& source_rect,
-    scoped_refptr<base::TaskRunner> background_task_runner,
-    const GrabWindowSnapshotAsyncPNGCallback& callback) {
-  GrabWindowSnapshotAsync(view, source_rect, background_task_runner, callback);
+void GrabViewSnapshotAsync(gfx::NativeView view,
+                           const gfx::Rect& source_rect,
+                           const GrabWindowSnapshotAsyncCallback& callback) {
+  GrabWindowSnapshotAsync(view, source_rect, callback);
 }