Clean up some of the Mac marking on tests.

webkit/tools/layout_tests/test_lists/tests_fixable.txt

Index: webkit/tools/layout_tests/test_lists/tests_fixable.txt
===================================================================
--- webkit/tools/layout_tests/test_lists/tests_fixable.txt	(revision 7054)
+++ webkit/tools/layout_tests/test_lists/tests_fixable.txt	(working copy)
@@ -1377,7 +1377,6 @@
 MAC : LayoutTests/editing/pasteboard/4806874.html = FAIL
 MAC : LayoutTests/editing/pasteboard/copy-standalone-image.html = FAIL
 
-MAC RELEASE : LayoutTests/editing/pasteboard/drag-image-to-contenteditable-in-iframe.html = FAIL
 MAC : LayoutTests/editing/pasteboard/drop-text-without-selection.html = FAIL
 MAC : LayoutTests/editing/pasteboard/input-field-1.html = FAIL
 MAC : LayoutTests/editing/pasteboard/nested-blocks-with-text-area.html = FAIL
@@ -2057,11 +2056,13 @@
 LayoutTests/fast/workers/worker-replace-self.html = TIMEOUT
 LayoutTests/http/tests/navigation/post-goback-repost-policy.html = TIMEOUT
 LayoutTests/fast/backgrounds/svg-as-background-5.html = CRASH FAIL PASS
-DEBUG : LayoutTests/editing/pasteboard/4947130.html = CRASH
-DEBUG : LayoutTests/editing/pasteboard/drag-image-in-about-blank-frame.html = CRASH
-DEBUG : LayoutTests/editing/pasteboard/drag-image-to-contenteditable-in-iframe.html = CRASH
-DEBUG : LayoutTests/editing/pasteboard/drag-selected-image-to-contenteditable.html = CRASH
-DEBUG : LayoutTests/editing/selection/drag-to-contenteditable-iframe.html = CRASH
-DEBUG : LayoutTests/fast/events/standalone-image-drag-to-editable.html = CRASH
+LINUX WIN DEBUG : LayoutTests/editing/pasteboard/4947130.html = CRASH
+LINUX WIN DEBUG : LayoutTests/editing/pasteboard/drag-image-in-about-blank-frame.html = CRASH
+LINUX WIN DEBUG : LayoutTests/editing/pasteboard/drag-image-to-contenteditable-in-iframe.html = CRASH
+MAC : LayoutTests/editing/pasteboard/drag-image-to-contenteditable-in-iframe.html = FAIL
+LINUX WIN DEBUG : LayoutTests/editing/pasteboard/drag-selected-image-to-contenteditable.html = CRASH
+LINUX WIN DEBUG : LayoutTests/editing/selection/drag-to-contenteditable-iframe.html = CRASH
+LINUX WIN DEBUG : LayoutTests/fast/events/standalone-image-drag-to-editable.html = CRASH
+MAC DEBUG : LayoutTests/fast/events/standalone-image-drag-to-editable.html = FAIL
 // Missing expected results.
 SKIP : LayoutTests/svg/webarchive/svg-cursor-subresources.svg = FAIL