Revert of Move fetching logic out of ApplicationManager, eliminate url mappings.

mojo/runner/shell_test_base.cc

Index: mojo/runner/shell_test_base.cc
diff --git a/mojo/runner/shell_test_base.cc b/mojo/runner/shell_test_base.cc
index 397e2b912632c197670491661ac734c071997b56..820e664da0d3bdeb34a60efa645ba3c334723104 100644
--- a/mojo/runner/shell_test_base.cc
+++ b/mojo/runner/shell_test_base.cc
@@ -30,7 +30,7 @@
 
 }  // namespace
 
-ShellTestBase::ShellTestBase() : shell_context_(GetTestAppFilePath()) {
+ShellTestBase::ShellTestBase() {
 }
 
 ShellTestBase::~ShellTestBase() {
@@ -38,6 +38,7 @@
 
 void ShellTestBase::SetUp() {
   CHECK(shell_context_.Init());
+  SetUpTestApplications();
 }
 
 void ShellTestBase::TearDown() {
@@ -60,10 +61,15 @@
 }
 
 #if !defined(OS_ANDROID)
-base::FilePath ShellTestBase::GetTestAppFilePath() const {
-  base::FilePath shell_dir;
-  PathService::Get(base::DIR_MODULE, &shell_dir);
-  return shell_dir;
+void ShellTestBase::SetUpTestApplications() {
+  // Set the URLResolver origin to be the same as the base file path for
+  // local files. This is primarily for test convenience, so that references
+  // to unknown mojo: URLs that do not have specific local file or custom
+  // mappings registered on the URL resolver are treated as shared libraries.
+  base::FilePath service_dir;
+  CHECK(PathService::Get(base::DIR_MODULE, &service_dir));
+  shell_context_.url_resolver()->SetMojoBaseURL(
+      util::FilePathToFileURL(service_dir));
 }
 #endif