aw: Use HashMap instead of ArrayMap

android_webview/java/src/org/chromium/android_webview/AwContentsIoThreadClient.java

Index: android_webview/java/src/org/chromium/android_webview/AwContentsIoThreadClient.java
diff --git a/android_webview/java/src/org/chromium/android_webview/AwContentsIoThreadClient.java b/android_webview/java/src/org/chromium/android_webview/AwContentsIoThreadClient.java
index 087e01714ce6a61651e6bcb611953fb84643475b..bee4bb96d15f35bc64da94d99b58e43fd2f44435 100644
--- a/android_webview/java/src/org/chromium/android_webview/AwContentsIoThreadClient.java
+++ b/android_webview/java/src/org/chromium/android_webview/AwContentsIoThreadClient.java
@@ -4,12 +4,12 @@
 
 package org.chromium.android_webview;
 
-import android.util.ArrayMap;
-
 import org.chromium.android_webview.AwContentsClient;
 import org.chromium.base.CalledByNative;
 import org.chromium.base.JNINamespace;
 
+import java.util.HashMap;
+
 /**
  * Delegate for handling callbacks. All methods are called on the IO thread.
  *
@@ -55,7 +55,7 @@ public abstract class AwContentsIoThreadClient {
         params.isMainFrame = isMainFrame;
         params.hasUserGesture = hasUserGesture;
         params.method = method;
-        params.requestHeaders = new ArrayMap<String, String>(requestHeaderNames.length);
+        params.requestHeaders = new HashMap<String, String>(requestHeaderNames.length);
         for (int i = 0; i < requestHeaderNames.length; ++i) {
             params.requestHeaders.put(requestHeaderNames[i], requestHeaderValues[i]);
         }