fix(platform-browser-dynamic): Rename CACHED_TEMPLATE_PROVIDER to RESOURCE_CACHE_PROVIDER (#10866)

* fix(platform-browser-dynamic): Rename CACHED_TEMPLATE_PROVIDER to RESOURCE_CACHE_PROVIDER

Closes #9741

BREAKING CHANGE:

`CACHED_TEMPLATE_PROVIDER` is now renamed to `RESOURCE_CACHE_PROVIDER`

Before:

```js
import {CACHED_TEMPLATE_PROVIDER} from '@angular/platform-browser-dynamic';
```

After:

```js
import {RESOURCE_CACHE_PROVIDER} from '@angular/platform-browser-dynamic';
```

* Rename XHR -> ResourceLoader

modules/@angular/platform-browser-dynamic/src/platform_providers.ts

@@ -6,18 +6,18 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {XHR} from '@angular/compiler';
+import {ResourceLoader} from '@angular/compiler';
 import {COMPILER_OPTIONS} from '@angular/core';
 
 import {INTERNAL_BROWSER_PLATFORM_PROVIDERS} from '../platform_browser_private';
 
-import {XHRImpl} from './xhr/xhr_impl';
+import {ResourceLoaderImpl} from './resource_loader/resource_loader_impl';
 
 export const INTERNAL_BROWSER_DYNAMIC_PLATFORM_PROVIDERS: any[] = [
   INTERNAL_BROWSER_PLATFORM_PROVIDERS,
   {
     provide: COMPILER_OPTIONS,
-    useValue: {providers: [{provide: XHR, useClass: XHRImpl}]},
+    useValue: {providers: [{provide: ResourceLoader, useClass: ResourceLoaderImpl}]},
     multi: true
   },
 ];

modules/@angular/platform-browser-dynamic/src/resource_loader/resource_loader_cache.ts

@@ -6,25 +6,26 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {XHR} from '@angular/compiler';
+import {ResourceLoader} from '@angular/compiler';
 import {BaseException} from '@angular/core';
 import {global} from '../facade/lang';
 
 /**
- * An implementation of XHR that uses a template cache to avoid doing an actual
- * XHR.
+ * An implementation of ResourceLoader that uses a template cache to avoid doing an actual
+ * ResourceLoader.
  *
  * The template cache needs to be built and loaded into window.$templateCache
  * via a separate mechanism.
  */
-export class CachedXHR extends XHR {
+export class CachedResourceLoader extends ResourceLoader {
   private _cache: {[url: string]: string};
 
   constructor() {
     super();
     this._cache = (<any>global).$templateCache;
     if (this._cache == null) {
-      throw new BaseException('CachedXHR: Template cache was not found in $templateCache.');
+      throw new BaseException(
+          'CachedResourceLoader: Template cache was not found in $templateCache.');
     }
   }
 
@@ -32,7 +33,8 @@ export class CachedXHR extends XHR {
     if (this._cache.hasOwnProperty(url)) {
       return Promise.resolve(this._cache[url]);
     } else {
-      return <Promise<any>>Promise.reject('CachedXHR: Did not find cached template for ' + url);
+      return <Promise<any>>Promise.reject(
+          'CachedResourceLoader: Did not find cached template for ' + url);
     }
   }
 }

modules/@angular/platform-browser-dynamic/src/resource_loader/resource_loader_impl.ts

@@ -5,13 +5,13 @@
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
-import {XHR} from '@angular/compiler';
+import {ResourceLoader} from '@angular/compiler';
 import {Injectable} from '@angular/core';
 
 import {isPresent} from '../facade/lang';
 
 @Injectable()
-export class XHRImpl extends XHR {
+export class ResourceLoaderImpl extends ResourceLoader {
   get(url: string): Promise<string> {
     var resolve: (result: any) => void;
     var reject: (error: any) => void;
@@ -25,7 +25,8 @@ export class XHRImpl extends XHR {
 
     xhr.onload = function() {
       // responseText is the old-school way of retrieving response (supported by IE8 & 9)
-      // response/responseType properties were introduced in XHR Level2 spec (supported by IE10)
+      // response/responseType properties were introduced in ResourceLoader Level2 spec (supported
+      // by IE10)
       var response = isPresent(xhr.response) ? xhr.response : xhr.responseText;
 
       // normalize IE9 bug (http://bugs.jquery.com/ticket/1450)