Clean up warnings.

Change-Id: I1dfe21e5f64364c90565b594e28074cabe7daa64
diff --git a/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java b/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
index 024c247..535ff79 100644
--- a/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
+++ b/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
@@ -228,7 +228,7 @@
      * manager with lock held.  (This lock will be acquired in places
      * where the window manager is calling in with its own lock held.)
      */
-    final Object mLock = new Object();
+    private final Object mLock = new Object();
 
     Context mContext;
     IWindowManager mWindowManager;
@@ -694,9 +694,8 @@
             // Double the time it takes to take a screenshot from the keyguard
             return (long) (KEYGUARD_SCREENSHOT_CHORD_DELAY_MULTIPLIER *
                     ViewConfiguration.getGlobalActionKeyTimeout());
-        } else {
-            return ViewConfiguration.getGlobalActionKeyTimeout();
         }
+        return ViewConfiguration.getGlobalActionKeyTimeout();
     }
 
     private void cancelPendingScreenshotChordAction() {
@@ -739,6 +738,7 @@
     };
 
     private final Runnable mScreenshotRunnable = new Runnable() {
+        @Override
         public void run() {
             takeScreenshot();
         }
@@ -845,6 +845,7 @@
     }
 
     /** {@inheritDoc} */
+    @Override
     public void init(Context context, IWindowManager windowManager,
             WindowManagerFuncs windowManagerFuncs) {
         mContext = context;
@@ -947,6 +948,7 @@
         }
     }
 
+    @Override
     public void setInitialDisplaySize(Display display, int width, int height, int density) {
         mDisplay = display;
 
diff --git a/services/java/com/android/server/display/DisplayManagerService.java b/services/java/com/android/server/display/DisplayManagerService.java
index e09970e..813c9c7 100644
--- a/services/java/com/android/server/display/DisplayManagerService.java
+++ b/services/java/com/android/server/display/DisplayManagerService.java
@@ -118,6 +118,9 @@
 
     // The synchronization root for the display manager.
     // This lock guards most of the display manager's state.
+    // NOTE: This is synchronized on while holding WindowManagerService.mWindowMap so never call
+    // into WindowManagerService methods that require mWindowMap while holding this unless you are
+    // very very sure that no deadlock can occur.
     private final SyncRoot mSyncRoot = new SyncRoot();
 
     // True if in safe mode.
@@ -158,7 +161,7 @@
             new CopyOnWriteArrayList<DisplayTransactionListener>();
 
     // Set to true if all displays have been blanked by the power manager.
-    private int mAllDisplayBlankStateFromPowerManager;
+    private int mAllDisplayBlankStateFromPowerManager = DISPLAY_BLANK_STATE_UNKNOWN;
 
     // Set to true when there are pending display changes that have yet to be applied
     // to the surface flinger state.
@@ -541,9 +544,8 @@
             synchronized (mSyncRoot) {
                 if (mWifiDisplayAdapter != null) {
                     return mWifiDisplayAdapter.getWifiDisplayStatusLocked();
-                } else {
-                    return new WifiDisplayStatus();
                 }
+                return new WifiDisplayStatus();
             }
         } finally {
             Binder.restoreCallingIdentity(token);
@@ -812,11 +814,9 @@
             Slog.w(TAG, "Missing logical display to use for physical display device: "
                     + device.getDisplayDeviceInfoLocked());
             return;
-        } else {
-            boolean isBlanked = (mAllDisplayBlankStateFromPowerManager
-                    == DISPLAY_BLANK_STATE_BLANKED);
-            display.configureDisplayInTransactionLocked(device, isBlanked);
         }
+        boolean isBlanked = (mAllDisplayBlankStateFromPowerManager == DISPLAY_BLANK_STATE_BLANKED);
+        display.configureDisplayInTransactionLocked(device, isBlanked);
 
         // Update the viewports if needed.
         DisplayDeviceInfo info = device.getDisplayDeviceInfoLocked();
diff --git a/services/java/com/android/server/wm/ScreenRotationAnimation.java b/services/java/com/android/server/wm/ScreenRotationAnimation.java
index cfcf841..71a61c6 100644
--- a/services/java/com/android/server/wm/ScreenRotationAnimation.java
+++ b/services/java/com/android/server/wm/ScreenRotationAnimation.java
@@ -267,8 +267,7 @@
     private void setSnapshotTransformInTransaction(Matrix matrix, float alpha) {
         if (mSurface != null) {
             matrix.getValues(mTmpFloats);
-            mSurface.setPosition(mTmpFloats[Matrix.MTRANS_X],
-                    mTmpFloats[Matrix.MTRANS_Y]);
+            mSurface.setPosition(mTmpFloats[Matrix.MTRANS_X], mTmpFloats[Matrix.MTRANS_Y]);
             mSurface.setMatrix(
                     mTmpFloats[Matrix.MSCALE_X], mTmpFloats[Matrix.MSKEW_Y],
                     mTmpFloats[Matrix.MSKEW_X], mTmpFloats[Matrix.MSCALE_Y]);
diff --git a/services/java/com/android/server/wm/WindowManagerService.java b/services/java/com/android/server/wm/WindowManagerService.java
index 7e12780..896a303 100644
--- a/services/java/com/android/server/wm/WindowManagerService.java
+++ b/services/java/com/android/server/wm/WindowManagerService.java
@@ -475,7 +475,7 @@
     // This is held as long as we have the screen frozen, to give us time to
     // perform a rotation animation when turning off shows the lock screen which
     // changes the orientation.
-    PowerManager.WakeLock mScreenFrozenLock;
+    private PowerManager.WakeLock mScreenFrozenLock;
 
     final AppTransition mAppTransition;
     boolean mStartingIconInTransition = false;
@@ -761,8 +761,7 @@
         mPowerManager = pm;
         mPowerManager.setPolicy(mPolicy);
         PowerManager pmc = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
-        mScreenFrozenLock = pmc.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
-                "SCREEN_FROZEN");
+        mScreenFrozenLock = pmc.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "SCREEN_FROZEN");
         mScreenFrozenLock.setReferenceCounted(false);
 
         mAppTransition = new AppTransition(context, mH);
@@ -4714,6 +4713,7 @@
         }
     }
 
+    @Override
     public void closeSystemDialogs(String reason) {
         synchronized(mWindowMap) {
             final AllWindowsIterator iterator = new AllWindowsIterator();
@@ -4735,6 +4735,7 @@
         return Math.abs(scale);
     }
 
+    @Override
     public void setAnimationScale(int which, float scale) {
         if (!checkCallingPermission(android.Manifest.permission.SET_ANIMATION_SCALE,
                 "setAnimationScale()")) {
@@ -5468,8 +5469,7 @@
 
         mWindowsFreezingScreen = true;
         mH.removeMessages(H.WINDOW_FREEZE_TIMEOUT);
-        mH.sendEmptyMessageDelayed(H.WINDOW_FREEZE_TIMEOUT,
-                WINDOW_FREEZE_TIMEOUT_DURATION);
+        mH.sendEmptyMessageDelayed(H.WINDOW_FREEZE_TIMEOUT, WINDOW_FREEZE_TIMEOUT_DURATION);
         mWaitingForConfig = true;
         getDefaultDisplayContentLocked().layoutNeeded = true;
         startFreezingDisplayLocked(inTransaction, 0, 0);
@@ -5540,13 +5540,16 @@
         return true;
     }
 
+    @Override
     public int getRotation() {
         return mRotation;
     }
 
+    @Override
     public int watchRotation(IRotationWatcher watcher) {
         final IBinder watcherBinder = watcher.asBinder();
         IBinder.DeathRecipient dr = new IBinder.DeathRecipient() {
+            @Override
             public void binderDied() {
                 synchronized (mWindowMap) {
                     for (int i=0; i<mRotationWatchers.size(); i++) {
@@ -8277,7 +8280,10 @@
                     if (DEBUG_LAYOUT_REPEATS) debugLayoutRepeats("On entry to LockedInner",
                         displayContent.pendingLayoutChanges);
 
-                    if ((adjustWallpaperWindowsLocked() & ADJUST_WALLPAPER_LAYERS_CHANGED) != 0) {
+                    if ((displayContent.pendingLayoutChanges &
+                            WindowManagerPolicy.FINISH_LAYOUT_REDO_WALLPAPER) != 0 &&
+                            (adjustWallpaperWindowsLocked() &
+                                    ADJUST_WALLPAPER_LAYERS_CHANGED) != 0) {
                         assignLayersLocked(windows);
                         displayContent.layoutNeeded = true;
                     }
@@ -9270,7 +9276,7 @@
         mInputMonitor.thawInputDispatchingLw();
 
         boolean configChanged;
-        
+
         // While the display is frozen we don't re-compute the orientation
         // to avoid inconsistent states.  However, something interesting
         // could have actually changed during that time so re-evaluate it
@@ -9338,17 +9344,16 @@
         } catch (FileNotFoundException e) {
         } catch (IOException e) {
         } finally {
-            if (in != null) {
-                try {
-                    in.close();
-                } catch (IOException e) {
-                }
-            }
             if (ind != null) {
                 try {
                     ind.close();
                 } catch (IOException e) {
                 }
+            } else if (in != null) {
+                try {
+                    in.close();
+                } catch (IOException e) {
+                }
             }
         }
     }
diff --git a/services/java/com/android/server/wm/WindowState.java b/services/java/com/android/server/wm/WindowState.java
index 8b8bddf..5fd42c2 100644
--- a/services/java/com/android/server/wm/WindowState.java
+++ b/services/java/com/android/server/wm/WindowState.java
@@ -223,30 +223,36 @@
      */
     boolean mRelayoutCalled;
 
-    // If the application has called relayout() with changes that can
-    // impact its window's size, we need to perform a layout pass on it
-    // even if it is not currently visible for layout.  This is set
-    // when in that case until the layout is done.
+    /**
+     * If the application has called relayout() with changes that can
+     * impact its window's size, we need to perform a layout pass on it
+     * even if it is not currently visible for layout.  This is set
+     * when in that case until the layout is done.
+     */
     boolean mLayoutNeeded;
 
-    // Currently running an exit animation?
+    /** Currently running an exit animation? */
     boolean mExiting;
 
-    // Currently on the mDestroySurface list?
+    /** Currently on the mDestroySurface list? */
     boolean mDestroying;
 
-    // Completely remove from window manager after exit animation?
+    /** Completely remove from window manager after exit animation? */
     boolean mRemoveOnExit;
 
-    // Set when the orientation is changing and this window has not yet
-    // been updated for the new orientation.
+    /**
+     * Set when the orientation is changing and this window has not yet
+     * been updated for the new orientation.
+     */
     boolean mOrientationChanging;
 
-    // Is this window now (or just being) removed?
+    /** Is this window now (or just being) removed? */
     boolean mRemoved;
 
-    // Temp for keeping track of windows that have been removed when
-    // rebuilding window list.
+    /**
+     * Temp for keeping track of windows that have been removed when
+     * rebuilding window list.
+     */
     boolean mRebuilding;
 
     // Input channel and input window handle used by the input dispatcher.