Refactor to make BlimpLocationProvider accessible to content layer.

content/public/browser/content_browser_client.h

Index: content/public/browser/content_browser_client.h
diff --git a/content/public/browser/content_browser_client.h b/content/public/browser/content_browser_client.h
index 7a61399c7d788336dfba16b3a9796183d0ef96da..2d54592ad0caf170b13ed9d11fa4896ef7954cbe 100644
--- a/content/public/browser/content_browser_client.h
+++ b/content/public/browser/content_browser_client.h
@@ -621,6 +621,11 @@ class CONTENT_EXPORT ContentBrowserClient {
   // information.
   virtual LocationProvider* OverrideSystemLocationProvider();
 
+  // Allows an embedder to return its own LocationProvider to be used as
+  // its sole LocationProvider. Should return a non-null value if any other
+  // LocationProvider would be unsuitable.
+  virtual LocationProvider* GetSoleLocationProvider();
+
   // Creates a new DevToolsManagerDelegate. The caller owns the returned value.
   // It's valid to return nullptr.
   virtual DevToolsManagerDelegate* GetDevToolsManagerDelegate();