Add MD_OS_ANDROID definition.

In order to better distinguish Android and Linux minidumps, introduce
a new MD_OS_ANDROID definition, and modify related source code accordingly.

Also append the build-fingerprint to the minidump location descriptor.
This gives more information about the system image the device runs on.
Review URL: https://breakpad.appspot.com/405002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@981 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/processor/minidump.cc

@@ -1760,6 +1760,7 @@ string MinidumpModule::code_identifier() const {
     case MD_OS_MAC_OS_X:
     case MD_OS_IOS:
     case MD_OS_SOLARIS:
+    case MD_OS_ANDROID:
     case MD_OS_LINUX: {
       // TODO(mmentovai): support uuid extension if present, otherwise fall
       // back to version (from LC_ID_DYLIB?), otherwise fall back to something
@@ -3108,6 +3109,10 @@ string MinidumpSystemInfo::GetOS() {
       os = "solaris";
       break;
 
+    case MD_OS_ANDROID:
+      os = "android";
+      break;
+
     default:
       BPLOG(ERROR) << "MinidumpSystemInfo unknown OS for platform " <<
                       HexString(system_info_.platform_id);