Remove const interfaces from content/public API.

Bug: 908139
Tbr: [email protected], [email protected], [email protected], [email protected], [email protected]
Change-Id: I24a403afe5d7b5f5a58e4ac6f8d3d82eb23f2611
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1661149
Commit-Queue: Lucas Gadani <[email protected]>
Reviewed-by: Scott Graham <[email protected]>
Reviewed-by: Avi Drissman <[email protected]>
Reviewed-by: Johannes Henkel <[email protected]>
Cr-Commit-Position: refs/heads/master@{#670246}
diff --git a/content/shell/browser/shell_content_browser_client.h b/content/shell/browser/shell_content_browser_client.h
index 5b2c0b0..ad711ae 100644
--- a/content/shell/browser/shell_content_browser_client.h
+++ b/content/shell/browser/shell_content_browser_client.h
@@ -89,8 +89,8 @@
       bool first_auth_attempt,
       LoginAuthRequiredCallback auth_required_callback) override;
 
-  std::string GetUserAgent() const override;
-  blink::UserAgentMetadata GetUserAgentMetadata() const override;
+  std::string GetUserAgent() override;
+  blink::UserAgentMetadata GetUserAgentMetadata() override;
 
 #if defined(OS_LINUX) || defined(OS_ANDROID)
   void GetAdditionalMappedFilesForChildProcess(