bug 635814 - add shellName and shellVersion to nsSystemInfo r=dougt a=2.0+

widget/src/android/AndroidBridge.cpp

@@ -642,6 +642,23 @@ AndroidBridge::CallEglCreateWindowSurface(void *dpy, void *config, AndroidGeckoS
     return (void*) realSurface;
 }
 
+bool
+AndroidBridge::GetStaticIntField(const char *className, const char *fieldName, PRInt32* aInt)
+{
+    AutoLocalJNIFrame jniFrame(3);
+    jclass cls = mJNIEnv->FindClass(className);
+    if (!cls)
+        return false;
+
+    jfieldID field = mJNIEnv->GetStaticFieldID(cls, fieldName, "I");
+    if (!field)
+        return false;
+
+    *aInt = static_cast<PRInt32>(mJNIEnv->GetStaticIntField(cls, field));
+
+    return true;
+}
+
 bool
 AndroidBridge::GetStaticStringField(const char *className, const char *fieldName, nsAString &result)
 {

widget/src/android/AndroidBridge.h

@@ -217,6 +217,8 @@ public:
 
     bool GetStaticStringField(const char *classID, const char *field, nsAString &result);
 
+    bool GetStaticIntField(const char *className, const char *fieldName, PRInt32* aInt);
+
     void SetKeepScreenOn(bool on);
 
 protected:

xpcom/base/nsSystemInfo.cpp

@@ -149,8 +149,22 @@ nsSystemInfo::Init()
             SetPropertyAsAString(NS_LITERAL_STRING("device"), str);
         if (mozilla::AndroidBridge::Bridge()->GetStaticStringField("android/os/Build", "MANUFACTURER", str))
             SetPropertyAsAString(NS_LITERAL_STRING("manufacturer"), str);
-        if (mozilla::AndroidBridge::Bridge()->GetStaticStringField("android/os/Build", "HARDWARE", str))
+        PRInt32 version;
+        if (!mozilla::AndroidBridge::Bridge()->GetStaticIntField("android/os/Build$VERSION", "SDK_INT", &version))
+            version = 0;
+        if (version >= 8 && mozilla::AndroidBridge::Bridge()->GetStaticStringField("android/os/Build", "HARDWARE", str))
             SetPropertyAsAString(NS_LITERAL_STRING("hardware"), str);
+        SetPropertyAsAString(NS_LITERAL_STRING("shellName"), NS_LITERAL_STRING("Android"));
+        if (mozilla::AndroidBridge::Bridge()->GetStaticStringField("android/os/Build", "CODENAME", str)) {
+            if (version) {
+                str.Append(NS_LITERAL_STRING(" ("));
+                str.AppendInt(version);
+                str.Append(NS_LITERAL_STRING(")"));
+            }   
+            SetPropertyAsAString(NS_LITERAL_STRING("shellVersion"), str);
+        }
+                
+        
     }
 #endif
     return NS_OK;