Fix adb bugreport and add bugreport unit tests.

Commit 58d72e2 introduced a regression, which made fullbugreport as the
default mode. This lead to 'adb bugreport SAMPLE_BR' triggering a
progress notification on the device as it inherited do_broadcast from full bugreport.

Fix the issue by separating full bugreport from default bugreport.

Add unit tests for all the cases of calling bugreport.

Bug: 119877616
Test: Verified that 'adb bugreport SAMPLE_BR' does not show any notification on the device.
Test: mmm -j frameworks/native/cmds/dumpstate/ && adb push ${OUT}/data/nativetest64/dumpstate_test* /data/nativetest64 && adb shell /data/nativetest64/dumpstate_test/dumpstate_test && printf "\n\n#### ALL TESTS PASSED ####\n"

Change-Id: I06e57454a91a3276dd89d47b3b0a04d3d85f32da
diff --git a/cmds/dumpstate/dumpstate.cpp b/cmds/dumpstate/dumpstate.cpp
index 9a11da6..b83d17e 100644
--- a/cmds/dumpstate/dumpstate.cpp
+++ b/cmds/dumpstate/dumpstate.cpp
@@ -1948,6 +1948,8 @@
             return "BUGREPORT_TELEPHONY";
         case Dumpstate::BugreportMode::BUGREPORT_WIFI:
             return "BUGREPORT_WIFI";
+        case Dumpstate::BugreportMode::BUGREPORT_DEFAULT:
+            return "BUGREPORT_DEFAULT";
     }
 }
 
@@ -1988,12 +1990,14 @@
             options->do_fb = true;
             options->do_broadcast = true;
             break;
+        case Dumpstate::BugreportMode::BUGREPORT_DEFAULT:
+            break;
     }
 }
 
 static Dumpstate::BugreportMode getBugreportModeFromProperty() {
-    // If the system property is not set, it's assumed to be a full bugreport.
-    Dumpstate::BugreportMode mode = Dumpstate::BugreportMode::BUGREPORT_FULL;
+    // If the system property is not set, it's assumed to be a default bugreport.
+    Dumpstate::BugreportMode mode = Dumpstate::BugreportMode::BUGREPORT_DEFAULT;
 
     std::string extra_options = android::base::GetProperty(PROPERTY_EXTRA_OPTIONS, "");
     if (!extra_options.empty()) {
@@ -2001,6 +2005,8 @@
         // Currently, it contains the type of the requested bugreport.
         if (extra_options == "bugreportplus") {
             mode = Dumpstate::BugreportMode::BUGREPORT_INTERACTIVE;
+        } else if (extra_options == "bugreportfull") {
+            mode = Dumpstate::BugreportMode::BUGREPORT_FULL;
         } else if (extra_options == "bugreportremote") {
             mode = Dumpstate::BugreportMode::BUGREPORT_REMOTE;
         } else if (extra_options == "bugreportwear") {