[processing] properly size toolbar button for provider actions

Author: nirvn

python/plugins/processing/ProcessingPlugin.py

@@ -232,8 +232,6 @@ def initGui(self):
         self.optionsAction.triggered.connect(self.openProcessingOptions)
         self.toolbox.processingToolbar.addAction(self.optionsAction)
 
-        self.toolbox.processingToolbar.setIconSize(self.iface.iconSize(True))
-
         menuBar = self.iface.mainWindow().menuBar()
         menuBar.insertMenu(
             self.iface.firstRightStandardMenu().menuAction(), self.menu)

python/plugins/processing/gui/ProcessingToolbox.py

@@ -70,6 +70,7 @@ def __init__(self):
         self.tipWasClosed = False
         self.setupUi(self)
         self.setAllowedAreas(Qt.LeftDockWidgetArea | Qt.RightDockWidgetArea)
+        self.processingToolbar.setIconSize(iface.iconSize(True))
 
         self.searchBox.textChanged.connect(self.textChanged)
         self.algorithmTree.customContextMenuRequested.connect(