Revert of [EditCommandSource] Pass source to |CompositEditCommand| and |TypingCommand| (3/3)

third_party/WebKit/Source/core/editing/commands/DeleteSelectionCommandTest.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/editing/commands/DeleteSelectionCommand.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/dom/Document.h"
 #include "core/editing/EditingTestBase.h"
 #include "core/editing/FrameSelection.h"
@@ skipping 33 matching lines @@
 
   const bool kNoSmartDelete = false;
   const bool kMergeBlocksAfterDelete = true;
   const bool kNoExpandForSpecialElements = false;
   const bool kSanitizeMarkup = true;
   DeleteSelectionCommand* command = DeleteSelectionCommand::create(
       document(), kNoSmartDelete, kMergeBlocksAfterDelete,
       kNoExpandForSpecialElements, kSanitizeMarkup,
       InputEvent::InputType::DeleteByCut);
 
-  EXPECT_TRUE(command->apply(EditCommandSource::kMenuOrKeyBinding))
-      << "the delete command should have succeeded";
+  EXPECT_TRUE(command->apply()) << "the delete command should have succeeded";
   EXPECT_EQ("<div contenteditable=\"true\"><br></div>",
             document().body()->innerHTML());
   EXPECT_TRUE(frame->selection().isCaret());
   EXPECT_EQ(Position(div, 0), frame->selection().base().toOffsetInAnchor());
 }
 
 }  // namespace blink