Remove the chrome namespace around ChromeContent[Renderer]Client.

chrome/common/chrome_content_client_ios.mm

Index: chrome/common/chrome_content_client_ios.mm
diff --git a/chrome/common/chrome_content_client_ios.mm b/chrome/common/chrome_content_client_ios.mm
index 7fbd4c800d85bff74619a8e1266664373569c159..347a89a4b62fb3754f637a535c5ee2836869f6ac 100644
--- a/chrome/common/chrome_content_client_ios.mm
+++ b/chrome/common/chrome_content_client_ios.mm
@@ -16,8 +16,6 @@
 // TODO(ios): Investigate merging with chrome_content_client.cc; this would
 // requiring either a lot of ifdefing, or spliting the file into parts.
 
-namespace chrome {
-
 void ChromeContentClient::SetActiveURL(const GURL& url) {
   NOTIMPLEMENTED();
 }
@@ -79,5 +77,3 @@ std::string ChromeContentClient::GetProcessTypeNameInEnglish(int type) {
   DCHECK(false) << "Unknown child process type!";
   return "Unknown"; 
 }
-
-}  // namespace chrome