Move core/fpdfapi/fpdf_render to core/fpdfapi/render

BUG=pdfium:603

Review-Url: https://codereview.chromium.org/2393593002
diff --git a/core/fpdfapi/page/cpdf_image.cpp b/core/fpdfapi/page/cpdf_image.cpp
index 9ff9968..ae962e8 100644
--- a/core/fpdfapi/page/cpdf_image.cpp
+++ b/core/fpdfapi/page/cpdf_image.cpp
@@ -11,14 +11,14 @@
 #include <vector>
 
 #include "core/fpdfapi/cpdf_modulemgr.h"
-#include "core/fpdfapi/fpdf_render/cpdf_pagerendercache.h"
-#include "core/fpdfapi/fpdf_render/render_int.h"
 #include "core/fpdfapi/page/cpdf_page.h"
 #include "core/fpdfapi/page/pageint.h"
 #include "core/fpdfapi/parser/cpdf_array.h"
 #include "core/fpdfapi/parser/cpdf_boolean.h"
 #include "core/fpdfapi/parser/cpdf_document.h"
 #include "core/fpdfapi/parser/cpdf_string.h"
+#include "core/fpdfapi/render/cpdf_pagerendercache.h"
+#include "core/fpdfapi/render/render_int.h"
 #include "core/fxcodec/fx_codec.h"
 #include "core/fxge/fx_dib.h"