Some cleanup, adding Google web flow example.

google/google.go

@@ -11,59 +11,6 @@
 //
 // For more information, please read
 // https://developers.google.com/accounts/docs/OAuth2.
-//
-// Example usage:
-//      // Web server flow usage:
-//      // Specify your configuration.
-//      // Your credentials should be obtained from the Google
-//      // Developer Console (https://console.developers.google.com).
-//      var config = google.NewConfig(&oauth2.Opts{
-//              ClientID:     YOUR_CLIENT_ID,
-//              ClientSecret: YOUR_CLIENT_SECRET,
-//              RedirectURL:  "http://you.example.org/handler",
-//              Scopes:       []string{ "scope1", "scope2" },
-//      })
-//
-//      // A landing page redirects to Google to get the auth code.
-//      func landing(w http.ResponseWriter, r *http.Request) {
-//              http.Redirect(w, r, config.AuthCodeURL(""), http.StatusFound)
-//      }
-//
-//      // The user will be redirected back to this handler, that takes the
-//      // "code" query parameter and Exchanges it for an access token.
-//      func handler(w http.ResponseWriter, r *http.Request) {
-//              t, err := config.NewTransportWithCode(r.FormValue("code"))
-//              // The Transport now has a valid Token. Create an *http.Client
-//              // with which we can make authenticated API requests.
-//              c := t.Client()
-//              c.Post(...)
-//      }
-//
-//      // Service accounts usage:
-//      // Google Developer Console will provide a p12 file contains
-//      // a private key. You need to export it to the pem format.
-//      // Run the following command to generate a pem file that
-//      // contains your private key:
-//      // $ openssl pkcs12 -in /path/to/p12key.p12 -out key.pem -nodes
-//      // Then, specify your configuration.
-//      var config = google.NewServiceAccountConfig(&oauth2.JWTOpts{
-//              Email:       "xxx@developer.gserviceaccount.com",
-//              PemFilename: "/path/to/key.pem",
-//              Scopes:      []string{
-//                      "https://www.googleapis.com/auth/drive.readonly"
-//              },
-//      })
-//
-//      // Create a transport.
-//      t, err := config.NewTransport()
-//      // Or, you can create a transport that impersonates
-//      // a Google user.
-//      t, err := config.NewTransportWithUser(googleUserEmail)
-//
-//      // Create a client to make authorized requests.
-//      c := t.Client()
-//      c.Post(...)
-//
 package google
 
 import (