Remove support for connecting to BrailleBack on Android.

Except for on ICS, Chrome for Android doesn't inject AndroidVox for
accessibility anymore.  Since BrailleBack only runs on JB+, this code is
now dead.

BUG=426808

Review URL: https://codereview.chromium.org/737133006

Cr-Commit-Position: refs/heads/master@{#306376}

BUILD.gn

@@ -192,7 +192,6 @@ group("root") {
       "//third_party/android_tools:android_support_v13_java",
       "//third_party/android_tools:android_support_v7_appcompat_java",
       "//third_party/android_tools:android_support_v7_mediarouter_java",
-      "//third_party/eyesfree:eyesfree_java",
     ]
 
     if (has_chrome_android_internal) {

DEPS

@@ -494,8 +494,6 @@ deps_os = {
     'src/third_party/lss':
       Var('chromium_git') + '/external/linux-syscall-support/lss.git' + '@' + Var('lss_revision'),
 
-    'src/third_party/eyesfree/src/android/java/src/com/googlecode/eyesfree/braille':
-      Var('chromium_git') + '/external/eyes-free/braille/client/src/com/googlecode/eyesfree/braille.git' + '@' + '77bf6edb0138e3a38a2772248696f130dab45e34',
   },
 }
 

content/content.gyp

@@ -461,13 +461,6 @@
             'R_package': 'org.chromium.content',
             'R_package_relpath': 'org/chromium/content',
           },
-          'conditions': [
-            ['android_webview_build == 0', {
-              'dependencies': [
-                '../third_party/eyesfree/eyesfree.gyp:eyesfree_java',
-              ],
-            }],
-          ],
           'includes': [ '../build/java.gypi' ],
         },
         {

content/public/android/BUILD.gn

@@ -49,11 +49,6 @@ android_library("content_java") {
   ]
 
   DEPRECATED_java_in_dir = "java/src"
-  if (!is_android_webview_build) {
-    deps += [
-      "//third_party/eyesfree:eyesfree_java",
-    ]
-  }
 }
 
 java_strings_grd("content_strings_grd") {

content/public/android/java/src/org/chromium/content/browser/accessibility/AccessibilityInjector.java

@@ -11,14 +11,10 @@
 import android.os.Bundle;
 import android.os.Vibrator;
 import android.speech.tts.TextToSpeech;
-import android.util.Log;
 import android.view.View;
 import android.view.accessibility.AccessibilityManager;
 import android.view.accessibility.AccessibilityNodeInfo;
 
-import com.googlecode.eyesfree.braille.selfbraille.SelfBrailleClient;
-import com.googlecode.eyesfree.braille.selfbraille.WriteData;
-
 import org.apache.http.NameValuePair;
 import org.apache.http.client.utils.URLEncodedUtils;
 import org.chromium.base.CommandLine;
@@ -39,8 +35,6 @@
  * Responsible for accessibility injection and management of a {@link ContentViewCore}.
  */
 public class AccessibilityInjector extends WebContentsObserver {
-    private static final String TAG = "AccessibilityInjector";
-
     // The ContentView this injector is responsible for managing.
     protected ContentViewCore mContentViewCore;
 
@@ -401,14 +395,11 @@ protected TextToSpeechWrapper createTextToSpeechWrapper(View view, Context conte
      */
     protected static class TextToSpeechWrapper {
         protected final TextToSpeech mTextToSpeech;
-        private final SelfBrailleClient mSelfBrailleClient;
         private final View mView;
 
         protected TextToSpeechWrapper(View view, Context context) {
             mView = view;
             mTextToSpeech = new TextToSpeech(context, null, null);
-            mSelfBrailleClient = new SelfBrailleClient(context, CommandLine.getInstance().hasSwitch(
-                    ContentSwitches.ACCESSIBILITY_DEBUG_BRAILLE_SERVICE));
         }
 
         @JavascriptInterface
@@ -455,23 +446,13 @@ public int stop() {
         @JavascriptInterface
         @SuppressWarnings("unused")
         public void braille(String jsonString) {
-            try {
-                JSONObject jsonObj = new JSONObject(jsonString);
-
-                WriteData data = WriteData.forView(mView);
-                data.setText(jsonObj.getString("text"));
-                data.setSelectionStart(jsonObj.getInt("startIndex"));
-                data.setSelectionEnd(jsonObj.getInt("endIndex"));
-                mSelfBrailleClient.write(data);
-            } catch (JSONException ex) {
-                Log.w(TAG, "Error parsing JS JSON object", ex);
-            }
+            // This is here because AndroidVox depends on the existence
+            // of this method.
         }
 
         @SuppressWarnings("unused")
         protected void shutdownInternal() {
             mTextToSpeech.shutdown();
-            mSelfBrailleClient.shutdown();
         }
     }
 }

content/public/android/java/src/org/chromium/content/common/ContentSwitches.java

@@ -27,10 +27,6 @@ public abstract class ContentSwitches {
     // Change the url of the JavaScript that gets injected when accessibility mode is enabled.
     public static final String ACCESSIBILITY_JAVASCRIPT_URL = "accessibility-js-url";
 
-    // Whether to ignore signature mismatches when connecting to BrailleBack's
-    // SelfBrailleService.
-    public static final String ACCESSIBILITY_DEBUG_BRAILLE_SERVICE = "debug-braille-service";
-
     // Indicates Chrome is running for performance benchmark.
     public static final String RUNNING_PERFORMANCE_BENCHMARK =
             "running-performance-benchmark";