WebApp: Move WebAppBrowserController into web_app

WebAppBrowserController is now defined in chrome/browser/ui/web_applications/
and renamed to AppBrowserController.

It is the abstract superclass for the controllers for two types of apps:
- HostedAppBrowserController for extension based apps
- ManifestWebAppBrowserController for web apps (e.g. PWAs)

Change-Id: Iec4cf2e73f53873ef274fdc51f25375361efb698
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1600920
Reviewed-by: Scott Violet <[email protected]>
Reviewed-by: Alexey Baskakov <[email protected]>
Commit-Queue: Eric Willigers <[email protected]>
Cr-Commit-Position: refs/heads/master@{#658691}
diff --git a/chrome/browser/ui/manifest_web_app_browser_controller.cc b/chrome/browser/ui/manifest_web_app_browser_controller.cc
index 3170d0c..f1ff39f 100644
--- a/chrome/browser/ui/manifest_web_app_browser_controller.cc
+++ b/chrome/browser/ui/manifest_web_app_browser_controller.cc
@@ -17,7 +17,7 @@
 
 ManifestWebAppBrowserController::ManifestWebAppBrowserController(
     Browser* browser)
-    : WebAppBrowserController(browser), app_launch_url_(GURL()) {}
+    : AppBrowserController(browser), app_launch_url_(GURL()) {}
 
 ManifestWebAppBrowserController::~ManifestWebAppBrowserController() = default;
 
@@ -91,6 +91,6 @@
     content::WebContents* contents) {
   if (app_launch_url_.is_empty())
     app_launch_url_ = contents->GetURL();
-  WebAppBrowserController::OnTabInserted(contents);
+  AppBrowserController::OnTabInserted(contents);
   UpdateToolbarVisibility(false);
 }