Enable zoom and make contents fit into viewport.

Make android webview shell behaviour to be like chrome shell: enable
zoom and fit we page contents into viewport.

BUG=n/a

Review URL: https://codereview.chromium.org/872363005

Cr-Commit-Position: refs/heads/master@{#314305}

android_webview/test/shell/src/org/chromium/android_webview/shell/AwShellActivity.java

@@ -149,9 +149,16 @@ public class AwShellActivity extends Activity {
             mBrowserContext = new AwBrowserContext(sharedPreferences);
         }
         final AwSettings awSettings = new AwSettings(this /*context*/,
-                false /*isAccessFromFileURLsGrantedByDefault*/, true /*supportsLegacyQuirks*/);
+                false /*isAccessFromFileURLsGrantedByDefault*/, false /*supportsLegacyQuirks*/);
         // Required for WebGL conformance tests.
         awSettings.setMediaPlaybackRequiresUserGesture(false);
+        // Allow zoom and fit contents to screen
+        awSettings.setBuiltInZoomControls(true);
+        awSettings.setDisplayZoomControls(false);
+        awSettings.setUseWideViewPort(true);
+        awSettings.setLoadWithOverviewMode(true);
+        awSettings.setLayoutAlgorithm(android.webkit.WebSettings.LayoutAlgorithm.TEXT_AUTOSIZING);
+
         testContainerView.initialize(new AwContents(mBrowserContext, testContainerView,
                 testContainerView.getContext(), testContainerView.getInternalAccessDelegate(),
                 testContainerView.getNativeGLDelegate(), awContentsClient, awSettings));
@@ -182,9 +189,9 @@ public class AwShellActivity extends Activity {
         mUrlTextView.setOnEditorActionListener(new OnEditorActionListener() {
             @Override
             public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
-                if ((actionId != EditorInfo.IME_ACTION_GO) && (event == null ||
-                        event.getKeyCode() != KeyEvent.KEYCODE_ENTER ||
-                        event.getAction() != KeyEvent.ACTION_DOWN)) {
+                if ((actionId != EditorInfo.IME_ACTION_GO) && (event == null
+                        || event.getKeyCode() != KeyEvent.KEYCODE_ENTER
+                        || event.getAction() != KeyEvent.ACTION_DOWN)) {
                     return false;
                 }