[DevTools] Remove InspectorBackendHostedMode.

third_party/WebKit/Source/devtools/front_end/Runtime.js

Index: third_party/WebKit/Source/devtools/front_end/Runtime.js
diff --git a/third_party/WebKit/Source/devtools/front_end/Runtime.js b/third_party/WebKit/Source/devtools/front_end/Runtime.js
index 060b400e2eab64cb01775f34690db34a0abb8611..243a44ca654a3647e31133993589138713289bfa 100644
--- a/third_party/WebKit/Source/devtools/front_end/Runtime.js
+++ b/third_party/WebKit/Source/devtools/front_end/Runtime.js
@@ -193,7 +193,7 @@ var Runtime = class {
    * @param {boolean} appendSourceURL
    * @return {!Promise<undefined>}
    */
-  static loadResourceIntoCache(url, appendSourceURL) {
+  static _loadResourceIntoCache(url, appendSourceURL) {
     return Runtime.loadResourcePromise(url).then(
         cacheResource.bind(this, url), cacheResource.bind(this, url, undefined));
 
@@ -753,7 +753,7 @@ Runtime.Module = class {
     var promises = [];
     for (var i = 0; i < resources.length; ++i) {
       var url = this._modularizeURL(resources[i]);
-      promises.push(Runtime.loadResourceIntoCache(url, true));
+      promises.push(Runtime._loadResourceIntoCache(url, true));
     }
     return Promise.all(promises).then(undefined);
   }