Set the font family for the "system-ui" generic font family on Linux

content/public/test/render_view_test.cc

Index: content/public/test/render_view_test.cc
diff --git a/content/public/test/render_view_test.cc b/content/public/test/render_view_test.cc
index f69db730982c59c12ff6eeda5a032942a4236283..ca81d51fbcdaab20cb5f05732a417e22854a1aad 100644
--- a/content/public/test/render_view_test.cc
+++ b/content/public/test/render_view_test.cc
@@ -60,6 +60,10 @@
 #include "content/test/dwrite_font_fake_sender_win.h"
 #endif
 
+#if defined(OS_CHROMEOS)
+#include "base/path_service.h"
+#endif
+
 using blink::WebGestureEvent;
 using blink::WebInputEvent;
 using blink::WebLocalFrame;
@@ -280,9 +284,18 @@ void RenderViewTest::SetUp() {
   // ResourceBundle isn't initialized (since we have to use a diferent test
   // suite implementation than for content_unittests). For browser_tests, this
   // is already initialized.
-  if (!ui::ResourceBundle::HasSharedInstance())
+  if (!ui::ResourceBundle::HasSharedInstance()) {
+#if defined(OS_CHROMEOS)
+    base::FilePath pak_file;
+    bool r = PathService::Get(base::DIR_MODULE, &pak_file);
+    DCHECK(r);
+    pak_file = pak_file.Append(FILE_PATH_LITERAL("content_shell.pak"));
+    ui::ResourceBundle::InitSharedInstanceWithPakPath(pak_file);
+#else
     ui::ResourceBundle::InitSharedInstanceWithLocale(
         "en-US", NULL, ui::ResourceBundle::DO_NOT_LOAD_COMMON_RESOURCES);
+#endif
+  }
 
   compositor_deps_.reset(new FakeCompositorDependencies);
   mock_process_.reset(new MockRenderProcess);