[fsp] Promote file system provider to stable.

chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_apitest.cc

Index: chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_apitest.cc
diff --git a/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_apitest.cc b/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_apitest.cc
index 7e36335325beb75dad76be44cfe0070c6d9a15e3..a82ae51178a713d6291adc5271f87ddcca9cfe21 100644
--- a/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_apitest.cc
+++ b/chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_apitest.cc
@@ -8,8 +8,7 @@ namespace extensions {
 
 class FileSystemProviderApiTest : public ExtensionApiTest {
  public:
-  FileSystemProviderApiTest()
-      : current_channel_(chrome::VersionInfo::CHANNEL_DEV) {}
+  FileSystemProviderApiTest() {}
 
   // Loads a helper testing extension.
   virtual void SetUpOnMainThread() override {
@@ -19,9 +18,6 @@ class FileSystemProviderApiTest : public ExtensionApiTest {
         kFlagEnableIncognito);
     ASSERT_TRUE(extension);
   }
-
- private:
-  extensions::ScopedCurrentChannel current_channel_;
 };
 
 IN_PROC_BROWSER_TEST_F(FileSystemProviderApiTest, Mount) {