Auto-rebaseline for r176024

http://src.chromium.org/viewvc/blink?view=revision&revision=176024

BUG=382884
TBR=jinho.bang@samsung.com

Review URL: https://codereview.chromium.org/328383005

git-svn-id: svn://svn.chromium.org/blink/trunk@176083 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/LayoutTests/TestExpectations

@@ -1062,9 +1062,6 @@ crbug.com/308768 inspector/network/network-status-non-http.html [ Skip ]
 
 crbug.com/381102 inspector/sources/debugger/debugger-step-into-custom-element-callbacks.html [ Skip ]
 
-crbug.com/382884 fast/canvas/alpha.html [ NeedsRebaseline ]
-crbug.com/382884 virtual/gpu/fast/canvas/alpha.html [ NeedsRebaseline ]
-
 # Started being flaky in r175790.
 crbug.com/361045 inspector/layers/tracing-layer-tree.html [ Pass Failure ]