Change user agent in TelemetryActivity in system webview shell for

perf testing with Extra String that comes with the intent

This is to fix one of the issues in android_webview_aosp_perf. Android
WebView doesn't support "--user-agent" commandline flag and it causing
some of the pages to reload in Telemetry tests.

BUG=554430

Review URL: https://codereview.chromium.org/1433193002

Cr-Commit-Position: refs/heads/master@{#360219}

1 files changed, 10 insertions, 1 deletions

diff --git a/android_webview/tools/WebViewShell/src/org/chromium/webview_shell/TelemetryActivity.java b/android_webview/tools/WebViewShell/src/org/chromium/webview_shell/TelemetryActivity.java
index 11fa10b..fc50f24 100644
--- a/android_webview/tools/WebViewShell/src/org/chromium/webview_shell/TelemetryActivity.java
+++ b/android_webview/tools/WebViewShell/src/org/chromium/webview_shell/TelemetryActivity.java
@@ -5,8 +5,10 @@
 package org.chromium.webview_shell;
 
 import android.app.Activity;
+import android.content.Intent;
 import android.os.Bundle;
 import android.webkit.CookieManager;
+import android.webkit.WebSettings;
 import android.webkit.WebView;
 import android.webkit.WebViewClient;
 
@@ -24,7 +26,14 @@ public class TelemetryActivity extends Activity {
 
         WebView webView = (WebView) findViewById(R.id.webview);
         CookieManager.setAcceptFileSchemeCookies(true);
-        webView.getSettings().setJavaScriptEnabled(true);
+        WebSettings settings = webView.getSettings();
+        settings.setJavaScriptEnabled(true);
+
+        Intent intent = getIntent();
+        String userAgentString = intent.getStringExtra("userAgent");
+        if (userAgentString != null) {
+            settings.setUserAgentString(userAgentString);
+        }
 
         webView.setWebViewClient(new WebViewClient() {
                 @Override