Re-enable TouchSelectionController scale factor tests on Windows

The alleged bug no longer hits, so these tests can be re-enabled and the
bug closed (last reference to this in the source tree).

Bug: 545547
Change-Id: I74469684932ba2bb61a8ac91a522024ac24dc328
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2570540
Auto-Submit: Daniel Libby <dlibby@microsoft.com>
Commit-Queue: Dave Tapuska <dtapuska@chromium.org>
Reviewed-by: Dave Tapuska <dtapuska@chromium.org>
Cr-Commit-Position: refs/heads/master@{#833301}

content/browser/renderer_host/input/touch_selection_controller_client_aura_browsertest.cc

@@ -882,18 +882,9 @@ class TouchSelectionControllerClientAuraScaleFactorTest
   }
 };
 
-#if defined(OS_WIN)
-// High DPI tests are disabled on Windows due to crbug.com/545547.
-#define MAYBE_SelectionHandleCoordinates DISABLED_SelectionHandleCoordinates
-#define MAYBE_InsertionHandleCoordinates DISABLED_InsertionHandleCoordinates
-#else
-#define MAYBE_SelectionHandleCoordinates SelectionHandleCoordinates
-#define MAYBE_InsertionHandleCoordinates InsertionHandleCoordinates
-#endif
-
 // Tests that selection handles are properly positioned at 2x DSF.
 IN_PROC_BROWSER_TEST_F(TouchSelectionControllerClientAuraScaleFactorTest,
-                       MAYBE_SelectionHandleCoordinates) {
+                       SelectionHandleCoordinates) {
   // Set the test page up.
   ASSERT_NO_FATAL_FAILURE(StartTestWithPage("/touch_selection.html"));
   InitSelectionController();
@@ -989,7 +980,7 @@ IN_PROC_BROWSER_TEST_F(TouchSelectionControllerClientAuraScaleFactorTest,
 
 // Tests that insertion handles are properly positioned at 2x DSF.
 IN_PROC_BROWSER_TEST_F(TouchSelectionControllerClientAuraScaleFactorTest,
-                       MAYBE_InsertionHandleCoordinates) {
+                       InsertionHandleCoordinates) {
   // Set the test page up.
   ASSERT_NO_FATAL_FAILURE(StartTestWithPage("/touch_selection.html"));
   InitSelectionController();