Refactor Blink's ServiceConnector and add ability to mock in layout tests

third_party/WebKit/Source/platform/exported/Platform.cpp

Index: third_party/WebKit/Source/platform/exported/Platform.cpp
diff --git a/third_party/WebKit/Source/platform/exported/Platform.cpp b/third_party/WebKit/Source/platform/exported/Platform.cpp
index 9cc246e98c19e962e44427a304c646520ea95ee6..6c296448e394a04d7e4402fe7a021444d3b0144a 100644
--- a/third_party/WebKit/Source/platform/exported/Platform.cpp
+++ b/third_party/WebKit/Source/platform/exported/Platform.cpp
@@ -37,6 +37,7 @@
 #include "platform/heap/BlinkGCMemoryDumpProvider.h"
 #include "platform/heap/GCTaskRunner.h"
 #include "platform/instrumentation/tracing/MemoryCacheDumpProvider.h"
+#include "public/platform/Connector.h"
 #include "public/platform/InterfaceProvider.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebPrerenderingSupport.h"
@@ -147,11 +148,12 @@ WebThread* Platform::mainThread() const {
   return m_mainThread;
 }
 
+Connector* Platform::connector() {
+  return Connector::getEmptyConnector();
+}
+
 InterfaceProvider* Platform::interfaceProvider() {
   return InterfaceProvider::getEmptyInterfaceProvider();
 }
 
-void Platform::bindServiceConnector(
-    mojo::ScopedMessagePipeHandle remoteHandle) {}
-
 }  // namespace blink