[DevTools] Migrate android to devtools_discovery.

android_webview/browser/aw_dev_tools_discovery_provider.h

Index: android_webview/browser/aw_dev_tools_discovery_provider.h
diff --git a/android_webview/browser/aw_dev_tools_discovery_provider.h b/android_webview/browser/aw_dev_tools_discovery_provider.h
index 81fdffe6b878d07d0840a53d704c24a65e835ffb..e679e0f4d9690bca13bafd74621c815399814dbe 100644
--- a/android_webview/browser/aw_dev_tools_discovery_provider.h
+++ b/android_webview/browser/aw_dev_tools_discovery_provider.h
@@ -12,13 +12,17 @@ namespace android_webview {
 class AwDevToolsDiscoveryProvider :
     public devtools_discovery::DevToolsDiscoveryManager::Provider {
  public:
-  AwDevToolsDiscoveryProvider();
+  // Installs provider to devtools_discovery.
+  static void Install();
+
   ~AwDevToolsDiscoveryProvider() override;
 
   // devtools_discovery::DevToolsDiscoveryManager::Provider implementation.
   devtools_discovery::DevToolsTargetDescriptor::List GetDescriptors() override;
 
  private:
+  AwDevToolsDiscoveryProvider();
+
   DISALLOW_COPY_AND_ASSIGN(AwDevToolsDiscoveryProvider);
 };