[Blimp Client] Fixes up URL before sending it to Engine.

blimp/client/feature/navigation_feature.cc

 // 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.
 
 #include "blimp/client/feature/navigation_feature.h"
 
 #include <map>
 #include <string>
 
 #include "blimp/common/create_blimp_message.h"
 #include "blimp/common/proto/blimp_message.pb.h"
 #include "blimp/common/proto/navigation.pb.h"
+#include "components/url_formatter/url_fixer.h"
 #include "net/base/net_errors.h"
 #include "url/gurl.h"
+#include "url/url_canon.h"
+#include "url/url_util.h"
 
 namespace blimp {
 namespace client {
 
 NavigationFeature::NavigationFeature() {}
 
 NavigationFeature::~NavigationFeature() {}
 
 void NavigationFeature::set_outgoing_message_processor(
     std::unique_ptr<BlimpMessageProcessor> processor) {
   outgoing_message_processor_ = std::move(processor);
 }
 
 void NavigationFeature::SetDelegate(int tab_id,
                                     NavigationFeatureDelegate* delegate) {
   DCHECK(!FindDelegate(tab_id));
   delegates_[tab_id] = delegate;
 }
 
 void NavigationFeature::RemoveDelegate(int tab_id) {
   DelegateMap::iterator it = delegates_.find(tab_id);
   if (it != delegates_.end())
     delegates_.erase(it);
 }
 
 void NavigationFeature::NavigateToUrlText(int tab_id,
                                           const std::string& url_text) {
+  // Fixes up url, e.g., convert "google.com" to "http://google.com".
+  // It also converts "example" to "http://example/" (a valid GURL but no
+  // website). In order to use search instead in this case, we check
+  // the host part of the URL to see if it contains '.', and use search
+  // instead if it does not. Note that this heuristic is not correct, since
+  // valid GURL such as "chrome://version/" do not have '.'. The heuristic is
+  // used only for v0.5 and useful for dev&test.
+  // TODO(haibinlu): Remove once omnibox is used.
+  GURL url = url_formatter::FixupURL(url_text, std::string());
+  if (!url.is_valid() || url.host_piece().find('.') == std::string::npos) {
+    url::RawCanonOutputT<char> buffer;
+    url::EncodeURIComponent(url_text.data(), url_text.size(), &buffer);
+    std::string encoded_query(buffer.data(), buffer.length());
+    url = GURL("https://www.google.com/#q=" + encoded_query);
+    DCHECK(url.is_valid());
+  }
+
   NavigationMessage* navigation_message;
   std::unique_ptr<BlimpMessage> blimp_message =
       CreateBlimpMessage(&navigation_message, tab_id);
   navigation_message->set_type(NavigationMessage::LOAD_URL);
-  navigation_message->mutable_load_url()->set_url(url_text);
+  navigation_message->mutable_load_url()->set_url(url.spec());
   outgoing_message_processor_->ProcessMessage(std::move(blimp_message),
                                               net::CompletionCallback());
 }
 
 void NavigationFeature::Reload(int tab_id) {
   NavigationMessage* navigation_message;
   std::unique_ptr<BlimpMessage> blimp_message =
       CreateBlimpMessage(&navigation_message, tab_id);
   navigation_message->set_type(NavigationMessage::RELOAD);
 
@@ skipping 71 matching lines @@
 NavigationFeature::NavigationFeatureDelegate* NavigationFeature::FindDelegate(
     const int tab_id) {
   DelegateMap::const_iterator it = delegates_.find(tab_id);
   if (it != delegates_.end())
     return it->second;
   return nullptr;
 }
 
 }  // namespace client
 }  // namespace blimp