RN trigger heap capture from js1

Differential Revision: D4397603

fbshipit-source-id: 566cfad9ce47bcc8cddb9219ed9f6a427ce19f84

ReactAndroid/src/main/java/com/facebook/react/devsupport/DevServerHelper.java

@@ -83,6 +83,7 @@ public class DevServerHelper {
 
   public interface PackagerCommandListener {
     void onPackagerReloadCommand();
+    void onCaptureHeapCommand();
   }
 
   public interface PackagerStatusCallback {
@@ -123,8 +124,12 @@ public class DevServerHelper {
           new JSPackagerWebSocketClient.JSPackagerCallback() {
             @Override
             public void onMessage(String target, String action) {
-              if (commandListener != null && "bridge".equals(target) && "reload".equals(action)) {
-                commandListener.onPackagerReloadCommand();
+              if (commandListener != null && "bridge".equals(target)) {
+                if ("reload".equals(action)) {
+                  commandListener.onPackagerReloadCommand();
+                } else if ("captureHeap".equals(action)) {
+                  commandListener.onCaptureHeapCommand();
+                }
               }
             }
           });

ReactAndroid/src/main/java/com/facebook/react/devsupport/DevSupportManagerImpl.java

@@ -417,9 +417,7 @@ public class DevSupportManagerImpl implements DevSupportManager, PackagerCommand
         new DevOptionHandler() {
           @Override
           public void onOptionSelected() {
-            JSCHeapCapture.captureHeap(
-              mApplicationContext.getCacheDir().getPath(),
-              JSCHeapUpload.captureCallback(mDevServerHelper.getHeapCaptureUploadUrl()));
+            handleCaptureHeap();
           }
         });
     options.put(
@@ -691,6 +689,22 @@ public class DevSupportManagerImpl implements DevSupportManager, PackagerCommand
     });
   }
 
+  @Override
+  public void onCaptureHeapCommand() {
+    UiThreadUtil.runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        handleCaptureHeap();
+      }
+    });
+  }
+
+  private void handleCaptureHeap() {
+    JSCHeapCapture.captureHeap(
+      mApplicationContext.getCacheDir().getPath(),
+      JSCHeapUpload.captureCallback(mDevServerHelper.getHeapCaptureUploadUrl()));
+  }
+
   private void updateLastErrorInfo(
       final String message,
       final StackFrame[] stack,