SurfaceFlinger: fix setting default buffer size

This change makes SurfaceFlinger update a SurfaceTextureLayer's default
buffer size in response to a window resize even if the Layer is in fixed
size mode.

Change-Id: I3871c8f19a045d03904d1284390cad7659be71ff
Bug: 5366426

Author: Jamie Gennis

services/surfaceflinger/Layer.cpp

@@ -371,11 +371,12 @@ uint32_t Layer::doTransaction(uint32_t flags)
             Layer::State& editDraw(mDrawingState);
             editDraw.requested_w = temp.requested_w;
             editDraw.requested_h = temp.requested_h;
-
-            // record the new size, form this point on, when the client request
-            // a buffer, it'll get the new size.
-            mSurfaceTexture->setDefaultBufferSize(temp.requested_w, temp.requested_h);
         }
+
+        // record the new size, form this point on, when the client request
+        // a buffer, it'll get the new size.
+        mSurfaceTexture->setDefaultBufferSize(temp.requested_w,
+                temp.requested_h);
     }
 
     if (temp.sequence != front.sequence) {