Remove all //blimp code.

blimp/common/proto/navigation.proto

-// Copyright 2015 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.
-//
-// Message definitions for browser navigation messages.
-
-syntax = "proto2";
-
-option optimize_for = LITE_RUNTIME;
-
-package blimp;
-
-message LoadUrlMessage {
-  // The text to generate and create a URL from.  This might be a URL or might
-  // not.  It might be text that should be turned into a search URL.
-  // Some example inputs:
-  // 1. google.com
-  // 2. www.wikipedia.org
-  // 3. dogs
-  optional string url = 1;
-}
-
-message NavigationStateChangeMessage {
-  // If the URL changed, this will include the new URL string.
-  optional string url = 1;
-
-  // If the favicon of the page changed, this should include the serialized
-  // bitmap of the favicon.
-  optional bytes favicon = 2;
-
-  // If the title changed, this will contain the new title string.
-  optional string title = 3;
-
-  // If the loading state changed, this will contain whether or not the page is
-  // loading.  See WebContents::IsLoading() for more details.
-  // TODO(dtrainor): Figure out exactly what we want to send here.  Loading may
-  // mean different things for different contexts (crbug.com/563626).
-  optional bool loading = 4;
-  
-  // Denotes whether the page load has been finished. While |loading| above will
-  // be true when any resources are being loaded from the network,
-  // |page_load_completed| is set to true when the initial page load has
-  // completed.
-  optional bool page_load_completed = 5;
-}
-
-message NavigationMessage {
-  enum Type {
-    UNKNOWN = 0;
-
-    // Server => Client types.
-    NAVIGATION_STATE_CHANGED = 1;
-
-    // Client => Server types.
-    LOAD_URL = 2;
-    GO_BACK = 3;
-    GO_FORWARD = 4;
-    RELOAD = 5;
-  }
-
-  optional Type type = 1;
-
-  optional NavigationStateChangeMessage navigation_state_changed = 1000;
-  optional LoadUrlMessage load_url = 1001;
-}