Add base:: to string16s in android_webview/.

android_webview/browser/aw_content_browser_client.h

Index: android_webview/browser/aw_content_browser_client.h
diff --git a/android_webview/browser/aw_content_browser_client.h b/android_webview/browser/aw_content_browser_client.h
index 3f81eca9e1a371d880e15ce060a78732c705a64b..cc32a60c0925dbfb83533803e7843f880a4548cf 100644
--- a/android_webview/browser/aw_content_browser_client.h
+++ b/android_webview/browser/aw_content_browser_client.h
@@ -76,8 +76,8 @@ class AwContentBrowserClient : public content::ContentBrowserClient {
                               net::CookieOptions* options) OVERRIDE;
   virtual bool AllowWorkerDatabase(
       const GURL& url,
-      const string16& name,
-      const string16& display_name,
+      const base::string16& name,
+      const base::string16& display_name,
       unsigned long estimated_size,
       content::ResourceContext* context,
       const std::vector<std::pair<int, int> >& render_frames) OVERRIDE;
@@ -87,7 +87,7 @@ class AwContentBrowserClient : public content::ContentBrowserClient {
       const std::vector<std::pair<int, int> >& render_frames) OVERRIDE;
   virtual bool AllowWorkerIndexedDB(
       const GURL& url,
-      const string16& name,
+      const base::string16& name,
       content::ResourceContext* context,
       const std::vector<std::pair<int, int> >& render_frames) OVERRIDE;
   virtual content::QuotaPermissionContext*