diff --git a/include/surfaceflinger/ISurfaceComposer.h b/include/surfaceflinger/ISurfaceComposer.h
index 56ed3a4..361e7dc 100644
--- a/include/surfaceflinger/ISurfaceComposer.h
+++ b/include/surfaceflinger/ISurfaceComposer.h
@@ -44,6 +44,8 @@
         eSecure             = 0x00000080,
         eNonPremultiplied   = 0x00000100,
         eOpaque             = 0x00000400,
+        eProtectedByApp     = 0x00000800,
+        eProtectedByDRM     = 0x00001000,
 
         eFXSurfaceNormal    = 0x00000000,
         eFXSurfaceBlur      = 0x00010000,
diff --git a/include/ui/GraphicBuffer.h b/include/ui/GraphicBuffer.h
index 8b256f4..02d6f8f 100644
--- a/include/ui/GraphicBuffer.h
+++ b/include/ui/GraphicBuffer.h
@@ -54,9 +54,11 @@
         USAGE_SW_WRITE_RARELY   = GRALLOC_USAGE_SW_WRITE_RARELY,
         USAGE_SW_WRITE_OFTEN    = GRALLOC_USAGE_SW_WRITE_OFTEN,
         USAGE_SW_WRITE_MASK     = GRALLOC_USAGE_SW_WRITE_MASK,
-        
+
         USAGE_SOFTWARE_MASK     = USAGE_SW_READ_MASK|USAGE_SW_WRITE_MASK,
-        
+
+        USAGE_PROTECTED         = GRALLOC_USAGE_PROTECTED,
+
         USAGE_HW_TEXTURE        = GRALLOC_USAGE_HW_TEXTURE,
         USAGE_HW_RENDER         = GRALLOC_USAGE_HW_RENDER,
         USAGE_HW_2D             = GRALLOC_USAGE_HW_2D,
diff --git a/include/ui/KeycodeLabels.h b/include/ui/KeycodeLabels.h
index 9b1a897..dbccf29 100755
--- a/include/ui/KeycodeLabels.h
+++ b/include/ui/KeycodeLabels.h
@@ -212,6 +212,22 @@
     { "PROG_YELLOW", 185 },
     { "PROG_BLUE", 186 },
     { "APP_SWITCH", 187 },
+    { "BUTTON_1", 188 },
+    { "BUTTON_2", 189 },
+    { "BUTTON_3", 190 },
+    { "BUTTON_4", 191 },
+    { "BUTTON_5", 192 },
+    { "BUTTON_6", 193 },
+    { "BUTTON_7", 194 },
+    { "BUTTON_8", 195 },
+    { "BUTTON_9", 196 },
+    { "BUTTON_10", 197 },
+    { "BUTTON_11", 198 },
+    { "BUTTON_12", 199 },
+    { "BUTTON_13", 200 },
+    { "BUTTON_14", 201 },
+    { "BUTTON_15", 202 },
+    { "BUTTON_16", 203 },
 
     // NOTE: If you add a new keycode here you must also add it to several other files.
     //       Refer to frameworks/base/core/java/android/view/KeyEvent.java for the full list.
diff --git a/libs/gui/SurfaceTexture.cpp b/libs/gui/SurfaceTexture.cpp
index d6cc8ce..223cf09 100644
--- a/libs/gui/SurfaceTexture.cpp
+++ b/libs/gui/SurfaceTexture.cpp
@@ -220,11 +220,19 @@
             mSlots[mLastQueued].mEglImage = image;
             mSlots[mLastQueued].mEglDisplay = dpy;
         }
+
+        GLint error;
+        while ((error = glGetError()) != GL_NO_ERROR) {
+            LOGE("GL error cleared before updating SurfaceTexture: %#04x", error);
+        }
         glEGLImageTargetTexture2DOES(GL_TEXTURE_EXTERNAL_OES, (GLeglImageOES)image);
-        GLint error = glGetError();
-        if (error != GL_NO_ERROR) {
+        bool failed = false;
+        while ((error = glGetError()) != GL_NO_ERROR) {
             LOGE("error binding external texture image %p (slot %d): %#04x",
                     image, mLastQueued, error);
+            failed = true;
+        }
+        if (failed) {
             return -EINVAL;
         }
 
diff --git a/opengl/libs/EGL/egl.cpp b/opengl/libs/EGL/egl.cpp
index 8977fbf..3dc8c03 100644
--- a/opengl/libs/EGL/egl.cpp
+++ b/opengl/libs/EGL/egl.cpp
@@ -389,10 +389,9 @@
 }
 
 static inline void clearError() {
-    if (gEGLThreadLocalStorageKey != -1) {
-        tls_t* tls = getTLS();
-        tls->error = EGL_SUCCESS;
-    }
+    // This must clear the error from all the underlying EGL implementations as
+    // well as the EGL wrapper layer.
+    eglGetError();
 }
 
 template<typename T>
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index f64fd7b..fde8e67 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -56,6 +56,8 @@
         mNeedsBlending(true),
         mNeedsDithering(false),
         mSecure(false),
+        mProtectedByApp(false),
+        mProtectedByDRM(false),
         mTextureManager(),
         mBufferManager(mTextureManager),
         mWidth(0), mHeight(0), mNeedsScaling(false), mFixedSize(false)
@@ -190,6 +192,8 @@
     mReqHeight = h;
 
     mSecure = (flags & ISurfaceComposer::eSecure) ? true : false;
+    mProtectedByApp = (flags & ISurfaceComposer::eProtectedByApp) ? true : false;
+    mProtectedByDRM = (flags & ISurfaceComposer::eProtectedByDRM) ? true : false;
     mNeedsBlending = (info.h_alpha - info.l_alpha) > 0 &&
             (flags & ISurfaceComposer::eOpaque) == 0;
 
@@ -475,6 +479,10 @@
         // request EGLImage for all buffers
         usage |= GraphicBuffer::USAGE_HW_TEXTURE;
     }
+    if (mProtectedByApp || mProtectedByDRM) {
+        // need a hardware-protected path to external video sink
+        usage |= GraphicBuffer::USAGE_PROTECTED;
+    }
     return usage;
 }
 
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 2908119..d9a8be3 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -79,6 +79,8 @@
     virtual bool needsDithering() const     { return mNeedsDithering; }
     virtual bool needsFiltering() const;
     virtual bool isSecure() const           { return mSecure; }
+    virtual bool isProtectedByApp() const   { return mProtectedByApp; }
+    virtual bool isProtectedByDRM() const   { return mProtectedByDRM; }
     virtual sp<Surface> createSurface() const;
     virtual status_t ditch();
     virtual void onRemoved();
@@ -218,7 +220,9 @@
     bool mNeedsDithering;
 
     // page-flip thread (currently main thread)
-    bool mSecure;
+    bool mSecure;         // no screenshots
+    bool mProtectedByApp; // application requires protected path to external sink
+    bool mProtectedByDRM; // DRM agent requires protected path to external sink
     Region mPostedDirtyRegion;
 
     // page-flip thread and transaction thread (currently main thread)
diff --git a/services/surfaceflinger/LayerBase.h b/services/surfaceflinger/LayerBase.h
index 8ed4749..184edd7 100644
--- a/services/surfaceflinger/LayerBase.h
+++ b/services/surfaceflinger/LayerBase.h
@@ -196,6 +196,18 @@
      */
     virtual bool isSecure() const       { return false; }
 
+    /**
+     * isProtectedByApp - true if application says this surface is protected, that
+     * is if it requires a hardware-protected data path to an external sink.
+     */
+    virtual bool isProtectedByApp() const   { return false; }
+
+    /**
+     * isProtectedByDRM - true if DRM agent says this surface is protected, that
+     * is if it requires a hardware-protected data path to an external sink.
+     */
+    virtual bool isProtectedByDRM() const   { return false; }
+
     /** Called from the main thread, when the surface is removed from the
      * draw list */
     virtual status_t ditch() { return NO_ERROR; }
diff --git a/services/surfaceflinger/LayerDim.h b/services/surfaceflinger/LayerDim.h
index 5631c0a..75f9a89 100644
--- a/services/surfaceflinger/LayerDim.h
+++ b/services/surfaceflinger/LayerDim.h
@@ -37,8 +37,10 @@
         virtual ~LayerDim();
 
     virtual void onDraw(const Region& clip) const;
-    virtual bool needsBlending() const  { return true; }
-    virtual bool isSecure() const       { return false; }
+    virtual bool needsBlending() const    { return true; }
+    virtual bool isSecure() const         { return false; }
+    virtual bool isProtectedByApp() const { return false; }
+    virtual bool isProtectedByDRM() const { return false; }
     virtual const char* getTypeId() const { return "LayerDim"; }
 };