Make net and ipc explicitly use the base namespace for Values.

net/spdy/spdy_header_block.cc

Index: net/spdy/spdy_header_block.cc
diff --git a/net/spdy/spdy_header_block.cc b/net/spdy/spdy_header_block.cc
index c84753ac02d1a370ae4eef74294a63e7a954844c..ecc22a4532476f5ad84d46b39997d8094644c8cb 100644
--- a/net/spdy/spdy_header_block.cc
+++ b/net/spdy/spdy_header_block.cc
@@ -9,16 +9,16 @@
 
 namespace net {
 
-Value* SpdyHeaderBlockNetLogCallback(
+base::Value* SpdyHeaderBlockNetLogCallback(
     const SpdyHeaderBlock* headers,
     NetLog::LogLevel /* log_level */) {
-  DictionaryValue* dict = new DictionaryValue();
-  DictionaryValue* headers_dict = new DictionaryValue();
+  base::DictionaryValue* dict = new base::DictionaryValue();
+  base::DictionaryValue* headers_dict = new base::DictionaryValue();
   for (SpdyHeaderBlock::const_iterator it = headers->begin();
        it != headers->end(); ++it) {
     headers_dict->SetWithoutPathExpansion(
         it->first,
-        new StringValue(
+        new base::StringValue(
             ShouldShowHttpHeaderValue(it->first) ? it->second : "[elided]"));
   }
   dict->Set("headers", headers_dict);