Implement local NTP for fallback.

chrome/browser/search/local_omnibox_popup_source.cc

 // Copyright 2013 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.
 
 #include "chrome/browser/search/local_omnibox_popup_source.h"
 
 #include "base/logging.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/common/content_client.h"
 #include "googleurl/src/gurl.h"
 #include "grit/browser_resources.h"
 #include "net/url_request/url_request.h"
 
 namespace {
 
-const char kHTMLFilename[] = "local-omnibox-popup.html";
-const char kJsFilename[] = "local-omnibox-popup.js";
-const char kCSSFilename[] = "local-omnibox-popup.css";
+const char kHtmlFilename[] = "local-omnibox-popup.html";
+const char kJSFilename[] = "local-omnibox-popup.js";
+const char kCssFilename[] = "local-omnibox-popup.css";
 const char kPageIconFilename[] = "images/page_icon.png";
 const char kPageIcon2xFilename[] = "images/2x/page_icon.png";
 const char kSearchIconFilename[] = "images/search_icon.png";
 const char kSearchIcon2xFilename[] = "images/2x/search_icon.png";
 
 }  // namespace
 
 LocalOmniboxPopupSource::LocalOmniboxPopupSource() {
 }
 
 LocalOmniboxPopupSource::~LocalOmniboxPopupSource() {
 }
 
 std::string LocalOmniboxPopupSource::GetSource() {
   return chrome::kChromeSearchLocalOmniboxPopupHost;
 }
 
 void LocalOmniboxPopupSource::StartDataRequest(
     const std::string& path,
     bool is_incognito,
     const content::URLDataSource::GotDataCallback& callback) {
   int identifier = -1;
-  if (path == kHTMLFilename) {
+  if (path == kHtmlFilename) {
     identifier = IDR_LOCAL_OMNIBOX_POPUP_HTML;
-  } else if (path == kJsFilename) {
+  } else if (path == kJSFilename) {
     identifier = IDR_LOCAL_OMNIBOX_POPUP_JS;
-  } else if (path == kCSSFilename) {
+  } else if (path == kCssFilename) {
     identifier = IDR_LOCAL_OMNIBOX_POPUP_CSS;
   } else if (path == kPageIconFilename) {
     identifier = IDR_LOCAL_OMNIBOX_POPUP_IMAGES_PAGE_ICON_PNG;
   } else if (path == kPageIcon2xFilename) {
     identifier = IDR_LOCAL_OMNIBOX_POPUP_IMAGES_2X_PAGE_ICON_PNG;
   } else if (path == kSearchIconFilename) {
     identifier = IDR_LOCAL_OMNIBOX_POPUP_IMAGES_SEARCH_ICON_PNG;
   } else if (path == kSearchIcon2xFilename) {
     identifier = IDR_LOCAL_OMNIBOX_POPUP_IMAGES_2X_SEARCH_ICON_PNG;
   } else {
     callback.Run(NULL);
     return;
   }
 
   scoped_refptr<base::RefCountedStaticMemory> response(
       content::GetContentClient()->GetDataResourceBytes(identifier));
   callback.Run(response);
 }
 
 std::string LocalOmniboxPopupSource::GetMimeType(
     const std::string& path) const {
-  if (path == kHTMLFilename)
+  if (path == kHtmlFilename)
     return "text/html";
-  if (path == kJsFilename)
+  if (path == kJSFilename)
     return "application/javascript";
-  if (path == kCSSFilename)
+  if (path == kCssFilename)
     return "text/css";
   if (path == kPageIconFilename || path == kPageIcon2xFilename ||
       path == kSearchIconFilename || path == kSearchIcon2xFilename)
     return "image/png";
   return "";
 }
 
 bool LocalOmniboxPopupSource::ShouldServiceRequest(
     const net::URLRequest* request) const {
   DCHECK(request->url().host() == chrome::kChromeSearchLocalOmniboxPopupHost);
 
   if (request->url().SchemeIs(chrome::kChromeSearchScheme)) {
     DCHECK(StartsWithASCII(request->url().path(), "/", true));
     std::string filename = request->url().path().substr(1);
-    return filename == kHTMLFilename || filename == kJsFilename ||
-        filename == kCSSFilename || filename == kPageIconFilename ||
-        filename == kPageIcon2xFilename || filename == kSearchIconFilename ||
-        filename == kSearchIcon2xFilename;
+    return filename == kHtmlFilename || filename == kJSFilename ||
+           filename == kCssFilename || filename == kPageIconFilename ||
+           filename == kPageIcon2xFilename || filename == kSearchIconFilename ||
+           filename == kSearchIcon2xFilename;
   }
   return false;
 }
 
 std::string LocalOmniboxPopupSource::GetContentSecurityPolicyFrameSrc() const {
   // Allow embedding of chrome search suggestion host.
   return base::StringPrintf("frame-src %s://%s/;",
                             chrome::kChromeSearchScheme,
                             chrome::kChromeSearchSuggestionHost);
 }