Load any URL using Go button in chrome shell.

Currently any other link cannot be opened using
Go button in the soft keyboard unless it is in right
format with http://.These changes are to fix the format
of URL in order to open it with Go button.

BUG=429100

Review URL: https://codereview.chromium.org/693133002

Cr-Commit-Position: refs/heads/master@{#302595}

chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellToolbar.java

@@ -25,6 +25,7 @@ import org.chromium.base.CommandLine;
 import org.chromium.chrome.browser.EmptyTabObserver;
 import org.chromium.chrome.browser.Tab;
 import org.chromium.chrome.browser.TabObserver;
+import org.chromium.chrome.browser.UrlUtilities;
 import org.chromium.chrome.browser.appmenu.AppMenuButtonHelper;
 import org.chromium.chrome.browser.appmenu.AppMenuHandler;
 import org.chromium.chrome.shell.omnibox.SuggestionPopup;
@@ -164,7 +165,8 @@ public class ChromeShellToolbar extends LinearLayout {
 
                 // This will set |mTab| by calling showTab().
                 // TODO(aurimas): Factor out initial tab creation to the activity level.
-                Tab tab = mTabManager.openUrl(mUrlTextView.getText().toString());
+                Tab tab = mTabManager.openUrl(
+                        UrlUtilities.fixupUrl(mUrlTextView.getText().toString()));
                 mUrlTextView.clearFocus();
                 setKeyboardVisibilityForUrl(false);
                 tab.getView().requestFocus();