Revert "Remove 'mojo_' prefix from all mojo applications."

mojo/shell/mojo_url_resolver.cc

Index: mojo/shell/mojo_url_resolver.cc
diff --git a/mojo/shell/mojo_url_resolver.cc b/mojo/shell/mojo_url_resolver.cc
index beaa8d8546ab80b5d43b4f819dff9f73c1258370..8d37237d40e0c99f3c9915a607045505025ce470 100644
--- a/mojo/shell/mojo_url_resolver.cc
+++ b/mojo/shell/mojo_url_resolver.cc
@@ -8,6 +8,7 @@
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/path_service.h"
+#include "base/strings/string_util.h"
 #include "mojo/shell/filename_util.h"
 #include "url/url_util.h"
 
@@ -15,7 +16,14 @@ namespace mojo {
 namespace shell {
 namespace {
 
-std::string MakeSharedLibraryName(const std::string& host_name) {
+std::string MakeSharedLibraryName(std::string host_name) {
+  // TODO(aa): This should go away soon. In the Chromium repo, all the app
+  // target names start with "mojo_" by convention. But when we have an SDK,
+  // one would assume the libraries would have names that don't have this bit.
+  std::string prefix = "mojo_";
+  if (!StartsWithASCII(host_name, prefix, true))
+    host_name = prefix + host_name;
+
 #if defined(OS_WIN)
   return host_name + ".dll";
 #elif defined(OS_LINUX) || defined(OS_ANDROID)