diff --git a/include/ui/Camera.h b/include/ui/Camera.h
index e3544ab..afb07b5 100644
--- a/include/ui/Camera.h
+++ b/include/ui/Camera.h
@@ -18,6 +18,7 @@
 #ifndef ANDROID_HARDWARE_CAMERA_H
 #define ANDROID_HARDWARE_CAMERA_H
 
+#include <utils/Timers.h>
 #include <ui/ICameraClient.h>
 
 namespace android {
@@ -94,6 +95,7 @@
 public:
     virtual void notify(int32_t msgType, int32_t ext1, int32_t ext2) = 0;
     virtual void postData(int32_t msgType, const sp<IMemory>& dataPtr) = 0;
+    virtual void postDataTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr) = 0;
 };
 
 class Camera : public BnCameraClient, public IBinder::DeathRecipient
@@ -155,6 +157,7 @@
     // ICameraClient interface
     virtual void        notifyCallback(int32_t msgType, int32_t ext, int32_t ext2);
     virtual void        dataCallback(int32_t msgType, const sp<IMemory>& dataPtr);
+    virtual void        dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& dataPtr);
 
     sp<ICamera>         remote();
 
diff --git a/include/ui/CameraHardwareInterface.h b/include/ui/CameraHardwareInterface.h
index 73036f0..822b4a8 100644
--- a/include/ui/CameraHardwareInterface.h
+++ b/include/ui/CameraHardwareInterface.h
@@ -28,7 +28,7 @@
 typedef void (*preview_callback)(const sp<IMemory>& mem, void* user);
 
 /** Callback for startRecord() */
-typedef void (*recording_callback)(const sp<IMemory>& mem, void* user);
+typedef void (*recording_callback)(nsecs_t timestamp, const sp<IMemory>& mem, void* user);
 
 /** Callback for takePicture() */
 typedef void (*shutter_callback)(void* user);
diff --git a/include/ui/ICameraClient.h b/include/ui/ICameraClient.h
index c4bdd07..1001c71 100644
--- a/include/ui/ICameraClient.h
+++ b/include/ui/ICameraClient.h
@@ -21,6 +21,7 @@
 #include <utils/IInterface.h>
 #include <utils/Parcel.h>
 #include <utils/IMemory.h>
+#include <utils/Timers.h>
 
 namespace android {
 
@@ -31,7 +32,7 @@
 
     virtual void            notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2) = 0;
     virtual void            dataCallback(int32_t msgType, const sp<IMemory>& data) = 0;
-
+    virtual void            dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& data) = 0;
 };
 
 // ----------------------------------------------------------------------------
diff --git a/include/utils/ResourceTypes.h b/include/utils/ResourceTypes.h
index 93bca4a..edd0cae 100644
--- a/include/utils/ResourceTypes.h
+++ b/include/utils/ResourceTypes.h
@@ -825,7 +825,11 @@
     };
     
     enum {
-        DENSITY_ANY = 0
+        DENSITY_DEFAULT = 0,
+        DENSITY_LOW = 120,
+        DENSITY_MEDIUM = 160,
+        DENSITY_HIGH = 240,
+        DENSITY_NONE = 0xffff
     };
     
     union {
@@ -854,7 +858,6 @@
     
     enum {
         MASK_KEYSHIDDEN = 0x0003,
-        SHIFT_KEYSHIDDEN = 0,
         KEYSHIDDEN_ANY = 0x0000,
         KEYSHIDDEN_NO = 0x0001,
         KEYSHIDDEN_YES = 0x0002,
@@ -906,10 +909,18 @@
     };
     
     enum {
-        SCREENLAYOUT_ANY  = 0x0000,
-        SCREENLAYOUT_SMALL = 0x0001,
-        SCREENLAYOUT_NORMAL = 0x0002,
-        SCREENLAYOUT_LARGE = 0x0003,
+        // screenLayout bits for screen size class.
+        MASK_SCREENSIZE = 0x0f,
+        SCREENSIZE_ANY  = 0x00,
+        SCREENSIZE_SMALL = 0x01,
+        SCREENSIZE_NORMAL = 0x02,
+        SCREENSIZE_LARGE = 0x03,
+        
+        // screenLayout bits for wide/long screen variation.
+        MASK_SCREENLONG = 0x30,
+        SCREENLONG_ANY = 0x00,
+        SCREENLONG_NO = 0x10,
+        SCREENLONG_YES = 0x20,
     };
     
     union {
@@ -1039,6 +1050,17 @@
             }
         }
 
+        if (screenConfig || o.screenConfig) {
+            if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0) {
+                if (!(screenLayout & MASK_SCREENSIZE)) return false;
+                if (!(o.screenLayout & MASK_SCREENSIZE)) return true;
+            }
+            if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0) {
+                if (!(screenLayout & MASK_SCREENLONG)) return false;
+                if (!(o.screenLayout & MASK_SCREENLONG)) return true;
+            }
+        }
+
         if (screenType || o.screenType) {
             if (orientation != o.orientation) {
                 if (!orientation) return false;
@@ -1055,7 +1077,7 @@
         }
 
         if (input || o.input) {
-            if (inputFlags != o.inputFlags) {
+            if (((inputFlags^o.inputFlags) & MASK_KEYSHIDDEN) != 0) {
                 if (!(inputFlags & MASK_KEYSHIDDEN)) return false;
                 if (!(o.inputFlags & MASK_KEYSHIDDEN)) return true;
             }
@@ -1083,13 +1105,6 @@
             }
         }
 
-        if (screenConfig || o.screenConfig) {
-            if (screenLayout != o.screenLayout) {
-                if (!screenLayout) return false;
-                if (!o.screenLayout) return true;
-            }
-        }
-
         if (version || o.version) {
             if (sdkVersion != o.sdkVersion) {
                 if (!sdkVersion) return false;
@@ -1138,6 +1153,17 @@
                 }
             }
 
+            if (screenConfig || o.screenConfig) {
+                if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0
+                        && (requested->screenLayout & MASK_SCREENSIZE)) {
+                    return (screenLayout & MASK_SCREENSIZE);
+                }
+                if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0
+                        && (requested->screenLayout & MASK_SCREENLONG)) {
+                    return (screenLayout & MASK_SCREENLONG);
+                }
+            }
+
             if (screenType || o.screenType) {
                 if ((orientation != o.orientation) && requested->orientation) {
                     return (orientation);
@@ -1219,12 +1245,6 @@
                 }
             }
 
-            if (screenConfig || o.screenConfig) {
-                if ((screenLayout != o.screenLayout) && requested->screenLayout) {
-                    return (screenLayout);
-                }
-            }
-
             if (version || o.version) {
                 if ((sdkVersion != o.sdkVersion) && requested->sdkVersion) {
                     return (sdkVersion);
@@ -1272,6 +1292,21 @@
                 return false;
             }
         }
+        if (screenConfig != 0) {
+            const int screenSize = screenLayout&MASK_SCREENSIZE;
+            const int setScreenSize = settings.screenLayout&MASK_SCREENSIZE;
+            if (setScreenSize != 0 && screenSize != 0
+                    && screenSize != setScreenSize) {
+                return false;
+            }
+            
+            const int screenLong = screenLayout&MASK_SCREENLONG;
+            const int setScreenLong = settings.screenLayout&MASK_SCREENLONG;
+            if (setScreenLong != 0 && screenLong != 0
+                    && screenLong != setScreenLong) {
+                return false;
+            }
+        }
         if (screenType != 0) {
             if (settings.orientation != 0 && orientation != 0
                 && orientation != settings.orientation) {
@@ -1316,12 +1351,6 @@
                 return false;
             }
         }
-        if (screenConfig != 0) {
-            if (settings.screenLayout != 0 && screenLayout != 0
-                && screenLayout != settings.screenLayout) {
-                return false;
-            }
-        }
         if (version != 0) {
             if (settings.sdkVersion != 0 && sdkVersion != 0
                 && sdkVersion != settings.sdkVersion) {
@@ -1351,12 +1380,14 @@
     String8 toString() const {
         char buf[200];
         sprintf(buf, "imsi=%d/%d lang=%c%c reg=%c%c orient=%d touch=%d dens=%d "
-                "kbd=%d nav=%d input=%d scrnW=%d scrnH=%d layout=%d vers=%d.%d",
+                "kbd=%d nav=%d input=%d scrnW=%d scrnH=%d sz=%d long=%d vers=%d.%d",
                 mcc, mnc,
                 language[0] ? language[0] : '-', language[1] ? language[1] : '-',
                 country[0] ? country[0] : '-', country[1] ? country[1] : '-',
                 orientation, touchscreen, density, keyboard, navigation, inputFlags,
-                screenWidth, screenHeight, screenLayout, sdkVersion, minorVersion);
+                screenWidth, screenHeight,
+                screenLayout&MASK_SCREENSIZE, screenLayout&MASK_SCREENLONG,
+                sdkVersion, minorVersion);
         return String8(buf);
     }
 };
diff --git a/include/utils/String8.h b/include/utils/String8.h
index c49faf6..ecc5774 100644
--- a/include/utils/String8.h
+++ b/include/utils/String8.h
@@ -29,11 +29,107 @@
 
 // ---------------------------------------------------------------------------
 
+extern "C" {
+
+typedef uint32_t char32_t;
+
+size_t strlen32(const char32_t *);
+size_t strnlen32(const char32_t *, size_t);
+
+/*
+ * Returns the length of "src" when "src" is valid UTF-8 string.
+ * Returns 0 if src is NULL, 0-length string or non UTF-8 string.
+ * This function should be used to determine whether "src" is valid UTF-8
+ * characters with valid unicode codepoints. "src" must be null-terminated.
+ *
+ * If you are going to use other GetUtf... functions defined in this header
+ * with string which may not be valid UTF-8 with valid codepoint (form 0 to
+ * 0x10FFFF), you should use this function before calling others, since the
+ * other functions do not check whether the string is valid UTF-8 or not.
+ *
+ * If you do not care whether "src" is valid UTF-8 or not, you should use
+ * strlen() as usual, which should be much faster.
+ */
+size_t utf8_length(const char *src);
+
+/*
+ * Returns the UTF-32 length of "src".
+ */
+size_t utf32_length(const char *src, size_t src_len);
+
+/*
+ * Returns the UTF-8 length of "src".
+ */
+size_t utf8_length_from_utf32(const char32_t *src, size_t src_len);
+
+/*
+ * Returns the unicode value at "index".
+ * Returns -1 when the index is invalid (equals to or more than "src_len").
+ * If returned value is positive, it is able to be converted to char32_t, which
+ * is unsigned. Then, if "next_index" is not NULL, the next index to be used is
+ * stored in "next_index". "next_index" can be NULL.
+ */
+int32_t utf32_at(const char *src, size_t src_len,
+                 size_t index, size_t *next_index);
+
+/*
+ * Stores a UTF-32 string converted from "src" in "dst", if "dst_length" is not
+ * large enough to store the string, the part of the "src" string is stored
+ * into "dst".
+ * Returns the size actually used for storing the string.
+ * "dst" is not null-terminated when dst_len is fully used (like strncpy).
+ */
+size_t utf8_to_utf32(const char* src, size_t src_len,
+                     char32_t* dst, size_t dst_len);
+
+/*
+ * Stores a UTF-8 string converted from "src" in "dst", if "dst_length" is not
+ * large enough to store the string, the part of the "src" string is stored
+ * into "dst" as much as possible. See the examples for more detail.
+ * Returns the size actually used for storing the string.
+ * dst" is not null-terminated when dst_len is fully used (like strncpy).
+ *
+ * Example 1
+ * "src" == \u3042\u3044 (\xE3\x81\x82\xE3\x81\x84)
+ * "src_len" == 2
+ * "dst_len" >= 7
+ * ->
+ * Returned value == 6
+ * "dst" becomes \xE3\x81\x82\xE3\x81\x84\0
+ * (note that "dst" is null-terminated)
+ *
+ * Example 2
+ * "src" == \u3042\u3044 (\xE3\x81\x82\xE3\x81\x84)
+ * "src_len" == 2
+ * "dst_len" == 5
+ * ->
+ * Returned value == 3
+ * "dst" becomes \xE3\x81\x82\0
+ * (note that "dst" is null-terminated, but \u3044 is not stored in "dst"
+ * since "dst" does not have enough size to store the character)
+ *
+ * Example 3
+ * "src" == \u3042\u3044 (\xE3\x81\x82\xE3\x81\x84)
+ * "src_len" == 2
+ * "dst_len" == 6
+ * ->
+ * Returned value == 6
+ * "dst" becomes \xE3\x81\x82\xE3\x81\x84
+ * (note that "dst" is NOT null-terminated, like strncpy)
+ */
+size_t utf32_to_utf8(const char32_t* src, size_t src_len,
+                     char* dst, size_t dst_len);
+
+}
+
+// ---------------------------------------------------------------------------
+
 namespace android {
 
 class TextOutput;
 
-//! This is a string holding UTF-8 characters.
+//! This is a string holding UTF-8 characters. Does not allow the value more
+// than 0x10FFFF, which is not valid unicode codepoint.
 class String8
 {
 public:
@@ -45,7 +141,8 @@
     explicit                    String8(const String16& o);
     explicit                    String8(const char16_t* o);
     explicit                    String8(const char16_t* o, size_t numChars);
-    
+    explicit                    String8(const char32_t* o);
+    explicit                    String8(const char32_t* o, size_t numChars);
                                 ~String8();
     
     inline  const char*         string() const;
@@ -59,11 +156,20 @@
             status_t            setTo(const char* other);
             status_t            setTo(const char* other, size_t numChars);
             status_t            setTo(const char16_t* other, size_t numChars);
-    
+            status_t            setTo(const char32_t* other,
+                                      size_t length);
+
             status_t            append(const String8& other);
             status_t            append(const char* other);
             status_t            append(const char* other, size_t numChars);
 
+            // Note that this function takes O(N) time to calculate the value.
+            // No cache value is stored.
+            size_t              getUtf32Length() const;
+            int32_t             getUtf32At(size_t index,
+                                           size_t *next_index) const;
+            size_t              getUtf32(char32_t* dst, size_t dst_len) const;
+
     inline  String8&            operator=(const String8& other);
     inline  String8&            operator=(const char* other);
     
@@ -103,7 +209,7 @@
             void                toLower(size_t start, size_t numChars);
             void                toUpper();
             void                toUpper(size_t start, size_t numChars);
-            
+
     /*
      * These methods operate on the string as if it were a path name.
      */
@@ -346,7 +452,7 @@
     return mString;
 }
 
-}; // namespace android
+}  // namespace android
 
 // ---------------------------------------------------------------------------