Revert of Move the user agent styles sheets to blink_resources.grd (Part 3)

Source/core/rendering/RenderThemeChromiumLinux.cpp

Index: Source/core/rendering/RenderThemeChromiumLinux.cpp
diff --git a/Source/core/rendering/RenderThemeChromiumLinux.cpp b/Source/core/rendering/RenderThemeChromiumLinux.cpp
index b5952782cf51546215a067f0374138525107bd82..48f841833fea2f9dea52ff7b90c1eaee0472f54c 100644
--- a/Source/core/rendering/RenderThemeChromiumLinux.cpp
+++ b/Source/core/rendering/RenderThemeChromiumLinux.cpp
@@ -5,7 +5,7 @@
 #include "config.h"
 #include "core/rendering/RenderThemeChromiumLinux.h"
 
-#include "platform/PlatformResourceLoader.h"
+#include "core/UserAgentStyleSheets.h"
 
 namespace blink {
 
@@ -23,7 +23,7 @@
 String RenderThemeChromiumLinux::extraDefaultStyleSheet()
 {
     return RenderThemeChromiumDefault::extraDefaultStyleSheet() +
-        loadResourceAsASCIIString("themeChromiumLinux.css");
+        String(themeChromiumLinuxCss, sizeof(themeChromiumLinuxCss));
 }
 
 } // namespace blink