browser: Move FindBrowserWithWebContents() into chrome namespace.

chrome/browser/automation/testing_automation_provider.cc

Index: chrome/browser/automation/testing_automation_provider.cc
diff --git a/chrome/browser/automation/testing_automation_provider.cc b/chrome/browser/automation/testing_automation_provider.cc
index 5e3f044a82e3f711ef4c57afe6f8032cd8297e28..2a048d27955d75ca14dc50ac6238a01f9a2c647e 100644
--- a/chrome/browser/automation/testing_automation_provider.cc
+++ b/chrome/browser/automation/testing_automation_provider.cc
@@ -515,7 +515,7 @@ void TestingAutomationProvider::CloseTab(int tab_handle,
                                          IPC::Message* reply_message) {
   if (tab_tracker_->ContainsHandle(tab_handle)) {
     NavigationController* controller = tab_tracker_->GetResource(tab_handle);
-    Browser* browser = browser::FindBrowserWithWebContents(
+    Browser* browser = chrome::FindBrowserWithWebContents(
         controller->GetWebContents());
     DCHECK(browser);
     new TabClosedNotificationObserver(this, wait_until_closed, reply_message,
@@ -1034,7 +1034,7 @@ void TestingAutomationProvider::GetTabIndex(int handle, int* tabstrip_index) {
 
   if (tab_tracker_->ContainsHandle(handle)) {
     NavigationController* tab = tab_tracker_->GetResource(handle);
-    Browser* browser = browser::FindBrowserWithWebContents(
+    Browser* browser = chrome::FindBrowserWithWebContents(
         tab->GetWebContents());
     *tabstrip_index = browser->tab_strip_model()->GetIndexOfWebContents(
         tab->GetWebContents());