Reland r50057. This is exactly the same except with two lines cherrypicked from

chrome/common/chrome_paths.cc

Index: chrome/common/chrome_paths.cc
diff --git a/chrome/common/chrome_paths.cc b/chrome/common/chrome_paths.cc
index 9dca7e037a6f7a3937abcf9c15581f5dfee7040a..b05596884cc729258f35db286cf92a3033e66d33 100644
--- a/chrome/common/chrome_paths.cc
+++ b/chrome/common/chrome_paths.cc
@@ -168,11 +168,6 @@ bool PathProvider(int key, FilePath* result) {
         return false;
       cur = cur.Append(FILE_PATH_LITERAL("inspector"));
       break;
-    case chrome::DIR_NET_INTERNALS:
-      if (!PathService::Get(chrome::DIR_RESOURCES, &cur))
-        return false;
-      cur = cur.Append(FILE_PATH_LITERAL("net_internals"));
-      break;
     case chrome::DIR_APP_DICTIONARIES:
 #if defined(OS_LINUX) || defined(OS_MACOSX)
       // We can't write into the EXE dir on Linux, so keep dictionaries