Add GetMimeTypeFromFile to Mojo's network service.

mojo/runner/native_runner_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/files/scoped_temp_dir.h"
 #include "mojo/runner/context.h"
+#include "mojo/runner/url_resolver.h"
 #include "mojo/shell/application_manager.h"
 #include "mojo/util/filename_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace mojo {
 namespace runner {
 namespace {
 
 struct TestState {
   TestState()
       : runner_was_created(false),
         runner_was_started(false),
         runner_was_destroyed(false) {}
 
   bool runner_was_created;
   bool runner_was_started;
   bool runner_was_destroyed;
 };
 
 class TestNativeRunner : public shell::NativeRunner {
  public:
   explicit TestNativeRunner(TestState* state) : state_(state) {
     state_->runner_was_created = true;
   }
   ~TestNativeRunner() override {
     state_->runner_was_destroyed = true;
-    base::MessageLoop::current()->Quit();
+    if (base::MessageLoop::current()->is_running())
+      base::MessageLoop::current()->Quit();
   }
   void Start(const base::FilePath& app_path,
              bool start_sandboxed,
              shell::NativeApplicationCleanup cleanup,
              InterfaceRequest<Application> application_request,
              const base::Closure& app_completed_callback) override {
     state_->runner_was_started = true;
   }
 
  private:
@@ skipping 28 matching lines @@
   void TearDown() override { context_.Shutdown(); }
 
  protected:
   Context context_;
   base::MessageLoop loop_;
   shell::ApplicationManager application_manager_;
   TestState state_;
 
  private:
   // shell::ApplicationManager::Delegate
-  GURL ResolveMappings(const GURL& url) override { return url; }
-  GURL ResolveMojoURL(const GURL& url) override { return url; }
+  GURL ResolveMappings(const GURL& url) override {
+    return context_.url_resolver()->ApplyMappings(url);
+  }
+  GURL ResolveMojoURL(const GURL& url) override {
+    return context_.url_resolver()->ResolveMojoURL(url);
+  }
   bool CreateFetcher(
       const GURL& url,
       const shell::Fetcher::FetchCallback& loader_callback) override {
     return false;
   }
 };
 
 TEST_F(NativeApplicationLoaderTest, DoesNotExist) {
   base::ScopedTempDir temp_dir;
   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
   base::FilePath nonexistent_file(FILE_PATH_LITERAL("nonexistent.txt"));
   GURL url(util::FilePathToFileURL(temp_dir.path().Append(nonexistent_file)));
   InterfaceRequest<ServiceProvider> services;
   ServiceProviderPtr service_provider;
   mojo::URLRequestPtr request(mojo::URLRequest::New());
   request->url = mojo::String::From(url.spec());
   application_manager_.ConnectToApplication(
       nullptr, request.Pass(), std::string(), GURL(), services.Pass(),
       service_provider.Pass(), shell::GetPermissiveCapabilityFilter(),
       base::Closure());
   EXPECT_FALSE(state_.runner_was_created);
   EXPECT_FALSE(state_.runner_was_started);
   EXPECT_FALSE(state_.runner_was_destroyed);
 }
 
 }  // namespace
 }  // namespace runner
 }  // namespace mojo