[WIP] Attempt to move everything cssom into a cssom namespace

third_party/WebKit/Source/core/css/cssom/CSSURLImageValue.h

Index: third_party/WebKit/Source/core/css/cssom/CSSURLImageValue.h
diff --git a/third_party/WebKit/Source/core/css/cssom/CSSURLImageValue.h b/third_party/WebKit/Source/core/css/cssom/CSSURLImageValue.h
index d6a223740dc6531bd082999d08b36015f22245cb..e1030e97f871fb798c496d87b06d726d243af2eb 100644
--- a/third_party/WebKit/Source/core/css/cssom/CSSURLImageValue.h
+++ b/third_party/WebKit/Source/core/css/cssom/CSSURLImageValue.h
@@ -8,6 +8,7 @@
 #include "core/css/cssom/CSSStyleImageValue.h"
 
 namespace blink {
+namespace cssom {
 
 class CORE_EXPORT CSSURLImageValue final : public CSSStyleImageValue {
     WTF_MAKE_NONCOPYABLE(CSSURLImageValue);
@@ -35,6 +36,8 @@ private:
     }
 };
 
+} // namespace cssom
 } // namespace blink
 
+
 #endif // CSSResourceValue_h