bluetooth: Initial simple mock content::WebBluetoothImpl.

content/test/layouttest_support.cc

Index: content/test/layouttest_support.cc
diff --git a/content/test/layouttest_support.cc b/content/test/layouttest_support.cc
index 4430a4671177ad86048abe53e063f4e3311b38d3..10a7f3748f56ff9aa93e27f8607e4ec11ea2db26 100644
--- a/content/test/layouttest_support.cc
+++ b/content/test/layouttest_support.cc
@@ -8,6 +8,7 @@
 #include "base/lazy_instance.h"
 #include "cc/blink/web_layer_impl.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
+#include "content/child/bluetooth/web_bluetooth_impl.h"
 #include "content/common/gpu/image_transport_surface.h"
 #include "content/public/common/page_state.h"
 #include "content/public/renderer/renderer_gamepad_provider.h"
@@ -310,6 +311,13 @@ void SetDeviceColorProfile(RenderView* render_view, const std::string& name) {
       SetDeviceColorProfileForTesting(color_profile);
 }
 
+void SetBluetoothMockDataSetForTesting(const std::string& name) {
+  RenderThreadImpl::current()
+      ->blink_platform_impl()
+      ->BluetoothImplForTesting()
+      ->SetBluetoothMockDataSetForTesting(name);
+}
+
 void UseSynchronousResizeMode(RenderView* render_view, bool enable) {
   static_cast<RenderViewImpl*>(render_view)->
       UseSynchronousResizeModeForTesting(enable);