Bug 1160877 - Fix gonkDisplay stop anim condition. r=mwu, a=me

--HG--
extra : rebase_source : c17fb0a0650827dc2fc7ae811642387a4b86a85a

widget/gonk/libdisplay/GonkDisplayJB.cpp

@@ -167,9 +167,8 @@ GonkDisplayJB::~GonkDisplayJB()
 ANativeWindow*
 GonkDisplayJB::GetNativeWindow()
 {
-    if (!mBootAnimBuffer.get()) {
-        StopBootAnimation();
-    }
+    StopBootAnim();
+
     return mSTClient.get();
 }
 
@@ -235,10 +234,7 @@ GonkDisplayJB::GetDispSurface()
 bool
 GonkDisplayJB::SwapBuffers(EGLDisplay dpy, EGLSurface sur)
 {
-    if (mBootAnimBuffer.get()) {
-        StopBootAnimation();
-        mBootAnimBuffer = nullptr;
-    }
+    StopBootAnim();
 
     // Should be called when composition rendering is complete for a frame.
     // Only HWC v1.0 needs this call.
@@ -337,10 +333,8 @@ GonkDisplayJB::QueueBuffer(ANativeWindowBuffer* buf)
 void
 GonkDisplayJB::UpdateDispSurface(EGLDisplay dpy, EGLSurface sur)
 {
-    if (mBootAnimBuffer.get()) {
-        StopBootAnimation();
-        mBootAnimBuffer = nullptr;
-    }
+    StopBootAnim();
+
     eglSwapBuffers(dpy, sur);
 }
 
@@ -356,6 +350,15 @@ GonkDisplayJB::GetPrevDispAcquireFd()
     return mDispSurface->GetPrevDispAcquireFd();
 }
 
+void
+GonkDisplayJB::StopBootAnim()
+{
+    StopBootAnimation();
+    if (mBootAnimBuffer.get()) {
+        mBootAnimBuffer = nullptr;
+    }
+}
+
 __attribute__ ((visibility ("default")))
 GonkDisplay*
 GetGonkDisplay()

widget/gonk/libdisplay/GonkDisplayJB.h

@@ -55,6 +55,8 @@ public:
     bool Post(buffer_handle_t buf, int fence);
 
 private:
+    void StopBootAnim();
+
     hw_module_t const*        mModule;
     hw_module_t const*        mFBModule;
     hwc_composer_device_1_t*  mHwc;