Upstream ChromeTab.hasPrerenderedUrl to Tab

It was just passing straight through on the native side.
BUG=443773

Review URL: https://codereview.chromium.org/949443002

Cr-Commit-Position: refs/heads/master@{#317584}

chrome/android/java/src/org/chromium/chrome/browser/Tab.java

@@ -2469,6 +2469,11 @@ public class Tab implements ViewGroup.OnHierarchyChangeListener,
         return mAppBannerManager;
     }
 
+    @VisibleForTesting
+    public boolean hasPrerenderedUrl(String url) {
+        return nativeHasPrerenderedUrl(mNativeTabAndroid, url);
+    }
+
     /**
      * Ensures the counter is at least as high as the specified value.  The counter should always
      * point to an unused ID (which will be handed out next time a request comes in).  Exposed so
@@ -2512,5 +2517,7 @@ public class Tab implements ViewGroup.OnHierarchyChangeListener,
             ContentViewCore content, boolean visible);
     private native void nativeDetachOverlayContentViewCore(long nativeTabAndroid,
             ContentViewCore content);
+    private native boolean nativeHasPrerenderedUrl(long nativeTabAndroid, String url);
+
     private static native void nativeRecordStartupToCommitUma();
 }

chrome/browser/android/tab_android.cc

@@ -764,6 +764,11 @@ jlong TabAndroid::GetBookmarkId(JNIEnv* env,
   return -1;
 }
 
+bool TabAndroid::HasPrerenderedUrl(JNIEnv* env, jobject obj, jstring url) {
+  GURL gurl(base::android::ConvertJavaStringToUTF8(env, url));
+  return HasPrerenderedUrl(gurl);
+}
+
 namespace {
 
 class ChromeInterceptNavigationDelegate : public InterceptNavigationDelegate {

chrome/browser/android/tab_android.h

@@ -211,6 +211,8 @@ class TabAndroid : public CoreTabHelperDelegate,
                                     jobject obj,
                                     jobject jcontent_view_core);
 
+  bool HasPrerenderedUrl(JNIEnv* env, jobject obj, jstring url);
+
   // Register the Tab's native methods through JNI.
   static bool RegisterTabAndroid(JNIEnv* env);