Bug 1248459 - Get more logs for debugging crash; r=snorp

This patch turns on logging for GeckoEditable and GeckoInputConnection,
and makes us fetch more lines of logcat when submitting crash reports.

mobile/android/base/java/org/mozilla/gecko/CrashReporter.java

@@ -314,15 +314,20 @@ public class CrashReporter extends AppCompatActivity
     }
 
     private String readLogcat() {
+        final String crashReporterProc = " " + android.os.Process.myPid() + ' ';
         BufferedReader br = null;
         try {
-            // get the last 200 lines of logcat
+            // get at most the last 400 lines of logcat
             Process proc = Runtime.getRuntime().exec(new String[] {
-                "logcat", "-v", "threadtime", "-t", "200", "-d", "*:D"
+                "logcat", "-v", "threadtime", "-t", "400", "-d", "*:D"
             });
             StringBuilder sb = new StringBuilder();
             br = new BufferedReader(new InputStreamReader(proc.getInputStream()));
             for (String s = br.readLine(); s != null; s = br.readLine()) {
+                if (s.contains(crashReporterProc)) {
+                    // Don't include logs from the crash reporter's process.
+                    break;
+                }
                 sb.append(s).append('\n');
             }
             return sb.toString();

mobile/android/base/java/org/mozilla/gecko/GeckoEditable.java

@@ -49,7 +49,8 @@ final class GeckoEditable extends JNIObject
         implements InvocationHandler, Editable,
                    GeckoEditableClient, GeckoEditableListener, GeckoEventListener {
 
-    private static final boolean DEBUG = false;
+    // Turned on temporarily for debugging bug 1248459.
+    private static final boolean DEBUG = !AppConstants.RELEASE_BUILD;
     private static final String LOGTAG = "GeckoEditable";
 
     // Filters to implement Editable's filtering functionality

mobile/android/base/java/org/mozilla/gecko/GeckoInputConnection.java

@@ -43,7 +43,8 @@ class GeckoInputConnection
     extends BaseInputConnection
     implements InputConnectionListener, GeckoEditableListener {
 
-    private static final boolean DEBUG = false;
+    // Turned on temporarily for debugging bug 1248459.
+    private static final boolean DEBUG = !AppConstants.RELEASE_BUILD;
     protected static final String LOGTAG = "GeckoInputConnection";
 
     private static final String CUSTOM_HANDLER_TEST_METHOD = "testInputConnection";