Add drawer with state information

tools/viewer/sk_app/android/surface_glue_android.h

Index: tools/viewer/sk_app/android/surface_glue_android.h
diff --git a/tools/viewer/sk_app/android/surface_glue_android.h b/tools/viewer/sk_app/android/surface_glue_android.h
index a4698336f04b4ea1489eb7a1caaf70b84b5b4f92..3bbf3af9c3cfec437fb7b016ac24343de504b5ae 100644
--- a/tools/viewer/sk_app/android/surface_glue_android.h
+++ b/tools/viewer/sk_app/android/surface_glue_android.h
@@ -12,6 +12,8 @@
 
 #include <android/native_window_jni.h>
 
+#include "SkString.h"
+
 #include "../Application.h"
 #include "../Window.h"
 
@@ -25,7 +27,8 @@ enum MessageType {
     kDestroyApp,
     kContentInvalidated,
     kKeyPressed,
-    kTouched
+    kTouched,
+    kUIStateChanged,
 };
 
 struct Message {
@@ -35,6 +38,9 @@ struct Message {
     int fTouchOwner, fTouchState;
     float fTouchX, fTouchY;
 
+    SkString* stateName;
+    SkString* stateValue;
+
     Message() {}
     Message(MessageType t) : fType(t) {}
 };
@@ -49,8 +55,9 @@ struct SkiaAndroidApp {
     void postMessage(const Message& message) const;
     void readMessage(Message* message) const;
 
-    // This must be called in SkiaAndroidApp's own pthread because the JNIEnv is thread sensitive
+    // These must be called in SkiaAndroidApp's own pthread because the JNIEnv is thread sensitive
     void setTitle(const char* title) const;
+    void setUIState(const Json::Value& state) const;
 
 private:
     pthread_t fThread;
@@ -58,7 +65,7 @@ private:
     int fPipes[2];  // 0 is the read message pipe, 1 is the write message pipe
     JavaVM* fJavaVM;
     JNIEnv* fPThreadEnv;
-    jmethodID fSetTitleMethodID;
+    jmethodID fSetTitleMethodID, fSetStateMethodID;
 
     // This must be called in SkiaAndroidApp's own pthread because the JNIEnv is thread sensitive
     ~SkiaAndroidApp();