content: Out-of-process GPU service support for SurfaceTexture backed GpuMemoryBuffers.

content/public/android/java/src/org/chromium/content/browser/ChildProcessLauncher.java

Index: content/public/android/java/src/org/chromium/content/browser/ChildProcessLauncher.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/ChildProcessLauncher.java b/content/public/android/java/src/org/chromium/content/browser/ChildProcessLauncher.java
index 286afbca7d4a2eef71388924b3238c1e225a8bab..4d73964b107ab04bedc8f3b5cd05802062192f0f 100644
--- a/content/public/android/java/src/org/chromium/content/browser/ChildProcessLauncher.java
+++ b/content/public/android/java/src/org/chromium/content/browser/ChildProcessLauncher.java
@@ -259,17 +259,31 @@ public class ChildProcessLauncher {
 
     @CalledByNative
     private static void registerSurfaceTexture(
-            int surfaceTextureId, int childProcessId, SurfaceTexture surfaceTexture) {
-        Pair<Integer, Integer> key = new Pair<Integer, Integer>(surfaceTextureId, childProcessId);
+            int surfaceTextureId, int clientId, SurfaceTexture surfaceTexture) {
+        Pair<Integer, Integer> key = new Pair<Integer, Integer>(surfaceTextureId, clientId);
         sSurfaceTextureSurfaceMap.put(key, new Surface(surfaceTexture));
     }
 
     @CalledByNative
-    private static void unregisterSurfaceTexture(int surfaceTextureId, int childProcessId) {
-        Pair<Integer, Integer> key = new Pair<Integer, Integer>(surfaceTextureId, childProcessId);
+    private static void unregisterSurfaceTexture(int surfaceTextureId, int clientId) {
+        Pair<Integer, Integer> key = new Pair<Integer, Integer>(surfaceTextureId, clientId);
         sSurfaceTextureSurfaceMap.remove(key);
     }
 
+    @CalledByNative
+    private static SurfaceWrapper getSurfaceTextureSurface(
+            int surfaceTextureId, int clientId) {
+        Pair<Integer, Integer> key = new Pair<Integer, Integer>(surfaceTextureId, clientId);
+
+        Surface surface = sSurfaceTextureSurfaceMap.get(key);
+        if (surface == null) {
+          Log.e(TAG, "Invalid Id for surface texture.");
+          return null;
+        }
+        assert surface.isValid();
+        return new SurfaceWrapper(surface);
+    }
+
     /**
      * Sets the visibility of the child process when it changes or when it is determined for the
      * first time.
@@ -487,20 +501,43 @@ public class ChildProcessLauncher {
             }
 
             @Override
-            public SurfaceWrapper getSurfaceTextureSurface(int primaryId, int secondaryId) {
+            public void registerSurfaceTextureSurface(
+                    int surfaceTextureId, int clientId, Surface surface) {
+                if (callbackType != CALLBACK_FOR_GPU_PROCESS) {
+                    Log.e(TAG, "Illegal callback for non-GPU process.");
+                    return;
+                }
+
+                Pair<Integer, Integer> key = new Pair<Integer, Integer>(surfaceTextureId, clientId);
+                sSurfaceTextureSurfaceMap.put(key, surface);
+            }
+
+            @Override
+            public void unregisterSurfaceTextureSurface(
+                    int surfaceTextureId, int clientId) {
+                if (callbackType != CALLBACK_FOR_GPU_PROCESS) {
+                    Log.e(TAG, "Illegal callback for non-GPU process.");
+                    return;
+                }
+
+                Pair<Integer, Integer> key = new Pair<Integer, Integer>(surfaceTextureId, clientId);
+                sSurfaceTextureSurfaceMap.remove(key);
+            }
+
+            @Override
+            public SurfaceWrapper getSurfaceTextureSurface(int surfaceTextureId, int clientId) {
                 if (callbackType != CALLBACK_FOR_RENDERER_PROCESS) {
                     Log.e(TAG, "Illegal callback for non-renderer process.");
                     return null;
                 }
 
-                if (secondaryId != childProcessId) {
+                if (clientId != childProcessId) {
                     Log.e(TAG, "Illegal secondaryId for renderer process.");
                     return null;
                 }
 
-                Pair<Integer, Integer> key = new Pair<Integer, Integer>(primaryId, secondaryId);
-                // Note: This removes the surface and passes the ownership to the caller.
-                Surface surface = sSurfaceTextureSurfaceMap.remove(key);
+                Pair<Integer, Integer> key = new Pair<Integer, Integer>(surfaceTextureId, clientId);

[no sievers, 2014/10/06 22:28:27]

nit: Can you call the methods above in ChildProcessLauncher for
register/unregister/get?

[reveman, 2014/10/07 01:00:21]

Done.

+                Surface surface = sSurfaceTextureSurfaceMap.get(key);
                 if (surface == null) {
                     Log.e(TAG, "Invalid Id for surface texture.");
                     return null;