Remove dependency on test_runner from some components unittests.

components/bookmarks/browser/bookmark_utils_unittest.cc

Index: components/bookmarks/browser/bookmark_utils_unittest.cc
diff --git a/components/bookmarks/browser/bookmark_utils_unittest.cc b/components/bookmarks/browser/bookmark_utils_unittest.cc
index 54d89d780ba9fe9047a4706916d81da9ae26bb09..dfd6e435a5e90aa9d1df25244a3d068076f42213 100644
--- a/components/bookmarks/browser/bookmark_utils_unittest.cc
+++ b/components/bookmarks/browser/bookmark_utils_unittest.cc
@@ -20,15 +20,6 @@
 #include "ui/base/clipboard/clipboard.h"
 #include "ui/base/clipboard/scoped_clipboard_writer.h"
 
-#if defined(USE_GLIB) && defined(USE_X11)
-
-#include <memory>
-
-#include "ui/events/platform/x11/x11_event_source_glib.h"  // nogncheck
-#include "ui/gfx/x/x11_types.h"                            // nogncheck
-
-#endif  // defined(USE_GLIB) && defined(USE_X11)
-
 using base::ASCIIToUTF16;
 using std::string;
 
@@ -39,11 +30,7 @@ class BookmarkUtilsTest : public testing::Test,
                           public BaseBookmarkModelObserver {
  public:
   BookmarkUtilsTest()
-      : grouped_changes_beginning_count_(0), grouped_changes_ended_count_(0) {
-#if defined(USE_GLIB) && defined(USE_X11)
-    event_source_.reset(new ui::X11EventSourceGlib(gfx::GetXDisplay()));
-#endif  // defined(USE_GLIB) && defined(USE_X11)
-  }
+      : grouped_changes_beginning_count_(0), grouped_changes_ended_count_(0) {}
 
   ~BookmarkUtilsTest() override {}
 
@@ -86,11 +73,6 @@ class BookmarkUtilsTest : public testing::Test,
 
   // Clipboard requires a message loop.
   base::MessageLoopForUI loop_;
-#if defined(USE_GLIB) && defined(USE_X11)
-  // On Linux, Clipboard also depends on an event source being present, to get
-  // the timestamp.
-  std::unique_ptr<ui::X11EventSourceGlib> event_source_;
-#endif  // defined(USE_GLIB) && defined(USE_X11)
 
   DISALLOW_COPY_AND_ASSIGN(BookmarkUtilsTest);
 };