Moving all the PlatformEvent subclasses from core/platform to platform

Source/core/rendering/RenderTextControlSingleLine.cpp

Index: Source/core/rendering/RenderTextControlSingleLine.cpp
diff --git a/Source/core/rendering/RenderTextControlSingleLine.cpp b/Source/core/rendering/RenderTextControlSingleLine.cpp
index 4725026aba57cb8567292240bf408c3ffc71432b..f38b564c21b724a7b5170238128a3da6b7525ecb 100644
--- a/Source/core/rendering/RenderTextControlSingleLine.cpp
+++ b/Source/core/rendering/RenderTextControlSingleLine.cpp
@@ -29,11 +29,11 @@
 #include "core/editing/FrameSelection.h"
 #include "core/html/shadow/ShadowElementNames.h"
 #include "core/page/Frame.h"
-#include "core/platform/PlatformKeyboardEvent.h"
 #include "core/platform/graphics/SimpleFontData.h"
 #include "core/rendering/HitTestResult.h"
 #include "core/rendering/RenderLayer.h"
 #include "core/rendering/RenderTheme.h"
+#include "platform/PlatformKeyboardEvent.h"
 
 using namespace std;