browser: Move two other functions from browser_finder.h into chrome namespace.

chrome/browser/app_controller_mac.mm

Index: chrome/browser/app_controller_mac.mm
diff --git a/chrome/browser/app_controller_mac.mm b/chrome/browser/app_controller_mac.mm
index 09ca8aac3f1bdbae6a820194993aef9bf97c25ea..9031dc08388603f72d5cefa4cfa7bc812d4f5691 100644
--- a/chrome/browser/app_controller_mac.mm
+++ b/chrome/browser/app_controller_mac.mm
@@ -652,7 +652,7 @@ void RecordLastRunAppBundlePath() {
       if ([self userWillWaitForInProgressDownloads:downloadCount]) {
         // Create a new browser window (if necessary) and navigate to the
         // downloads page if the user chooses to wait.
-        Browser* browser = browser::FindBrowserWithProfile(
+        Browser* browser = chrome::FindBrowserWithProfile(
             profiles[i], chrome::HOST_DESKTOP_TYPE_NATIVE);
         if (!browser) {
           browser = new Browser(Browser::CreateParams(profiles[i]));