Code cleanup, remove unused Java imports (#7687)

Author: jwren

flutter-idea/src/io/flutter/FlutterInitializer.java

@@ -32,11 +32,8 @@
 import com.intellij.openapi.roots.ProjectRootManager;
 import com.intellij.openapi.startup.StartupActivity;
 import com.intellij.openapi.vfs.VirtualFile;
-import com.intellij.openapi.wm.ToolWindow;
-import com.intellij.openapi.wm.ToolWindowManager;
 import com.intellij.util.messages.MessageBusConnection;
 import com.jetbrains.lang.dart.analyzer.DartAnalysisServerService;
-import com.jetbrains.lang.dart.ide.errorTreeView.DartProblemsView;
 import com.jetbrains.lang.dart.ide.toolingDaemon.DartToolingDaemonService;
 import de.roderick.weberknecht.WebSocketException;
 import io.flutter.analytics.Analytics;

flutter-idea/src/io/flutter/devtools/DevToolsExtensionsViewFactory.java

@@ -9,17 +9,14 @@
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.wm.ToolWindow;
 import com.intellij.openapi.wm.ToolWindowFactory;
-import com.intellij.openapi.wm.ToolWindowManager;
 import com.intellij.ui.content.ContentManager;
-import icons.FlutterIcons;
 import io.flutter.FlutterUtils;
 import io.flutter.actions.RefreshToolWindowAction;
 import io.flutter.bazel.WorkspaceCache;
 import io.flutter.run.daemon.DevToolsService;
 import io.flutter.sdk.FlutterSdk;
 import io.flutter.sdk.FlutterSdkVersion;
 import io.flutter.utils.AsyncUtils;
-import io.flutter.utils.UIUtils;
 import io.flutter.view.FlutterViewMessages;
 import kotlin.coroutines.Continuation;
 import org.jetbrains.annotations.NotNull;

flutter-idea/src/io/flutter/devtools/DevToolsExtensionsViewService.java

@@ -7,7 +7,6 @@
 
 import com.intellij.openapi.components.Service;
 import com.intellij.openapi.project.Project;
-import io.flutter.view.EmbeddedBrowser;
 import org.jetbrains.annotations.NotNull;
 
 @Service(Service.Level.PROJECT)

flutter-idea/src/io/flutter/devtools/DevToolsUrl.java

@@ -5,10 +5,6 @@
  */
 package io.flutter.devtools;
 
-import com.intellij.openapi.editor.colors.EditorColorsManager;
-import com.intellij.openapi.editor.colors.EditorColorsScheme;
-import com.intellij.util.ui.JBFont;
-import com.intellij.util.ui.UIUtil;
 import io.flutter.bazel.WorkspaceCache;
 import io.flutter.sdk.FlutterSdkUtil;
 import io.flutter.sdk.FlutterSdkVersion;

flutter-idea/src/io/flutter/devtools/DevToolsUtils.java

@@ -6,7 +6,6 @@
 package io.flutter.devtools;
 
 import com.intellij.openapi.editor.colors.EditorColorsManager;
-import com.intellij.openapi.editor.colors.EditorColorsScheme;
 import com.intellij.ui.ColorUtil;
 import com.intellij.ui.JBColor;
 import com.intellij.util.ui.UIUtil;

flutter-idea/src/io/flutter/devtools/RemainingDevToolsViewService.java

@@ -7,7 +7,6 @@
 
 import com.intellij.openapi.components.Service;
 import com.intellij.openapi.project.Project;
-import io.flutter.view.EmbeddedBrowser;
 import org.jetbrains.annotations.NotNull;
 
 @Service(Service.Level.PROJECT)

flutter-idea/src/io/flutter/performance/FlutterPerformanceView.java

@@ -5,7 +5,6 @@
  */
 package io.flutter.performance;
 
-import com.intellij.execution.runners.ExecutionUtil;
 import com.intellij.icons.AllIcons;
 import com.intellij.ide.browsers.BrowserLauncher;
 import com.intellij.openapi.Disposable;

flutter-idea/src/io/flutter/preview/PreviewViewFactory.java

@@ -12,8 +12,6 @@
 import com.intellij.openapi.wm.ToolWindow;
 import com.intellij.openapi.wm.ToolWindowFactory;
 import com.intellij.openapi.wm.ToolWindowManager;
-import icons.FlutterIcons;
-import io.flutter.utils.UIUtils;
 import io.flutter.utils.ViewListener;
 import org.jetbrains.annotations.NotNull;
 

flutter-idea/src/io/flutter/settings/FlutterSettings.java

@@ -12,7 +12,6 @@
 import com.intellij.util.EventDispatcher;
 import com.jetbrains.lang.dart.analyzer.DartClosingLabelManager;
 import io.flutter.analytics.Analytics;
-import io.flutter.sdk.FlutterSdkVersion;
 
 import java.util.EventListener;
 

flutter-idea/src/io/flutter/utils/UIUtils.java

@@ -7,18 +7,11 @@
 
 import com.intellij.openapi.actionSystem.AnActionEvent;
 import com.intellij.openapi.actionSystem.Presentation;
-import com.intellij.openapi.application.Application;
-import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.editor.colors.ColorKey;
 import com.intellij.openapi.editor.colors.EditorColors;
-import com.intellij.openapi.editor.colors.EditorColorsListener;
-import com.intellij.openapi.editor.colors.EditorColorsManager;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.wm.IdeFrame;
-import com.intellij.openapi.wm.ToolWindow;
 import com.intellij.openapi.wm.WindowManager;
-import icons.FlutterIcons;
-import io.flutter.devtools.DevToolsUtils;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 

flutter-idea/src/io/flutter/view/FlutterView.java

@@ -7,14 +7,11 @@
 
 import com.google.common.annotations.VisibleForTesting;
 import com.intellij.ide.browsers.BrowserLauncher;
-import com.intellij.ide.ui.UISettingsListener;
 import com.intellij.openapi.Disposable;
 import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.components.PersistentStateComponent;
 import com.intellij.openapi.components.Storage;
 import com.intellij.openapi.diagnostic.Logger;
-import com.intellij.openapi.editor.colors.EditorColorsListener;
-import com.intellij.openapi.editor.colors.EditorColorsManager;
 import com.intellij.openapi.progress.EmptyProgressIndicator;
 import com.intellij.openapi.progress.ProgressManager;
 import com.intellij.openapi.project.Project;
@@ -24,12 +21,10 @@
 import com.intellij.openapi.wm.ToolWindowManager;
 import com.intellij.openapi.wm.ex.ToolWindowManagerEx;
 import com.intellij.serviceContainer.NonInjectable;
-import com.intellij.ui.ColorUtil;
 import com.intellij.ui.components.JBLabel;
 import com.intellij.ui.components.labels.LinkLabel;
 import com.intellij.ui.content.Content;
 import com.intellij.ui.content.ContentManager;
-import com.intellij.util.messages.MessageBusConnection;
 import com.intellij.util.ui.JBUI;
 import com.intellij.util.ui.UIUtil;
 import com.intellij.xdebugger.XSourcePosition;

flutter-idea/src/io/flutter/view/FlutterViewFactory.java

@@ -13,8 +13,6 @@
 import com.intellij.openapi.wm.ToolWindow;
 import com.intellij.openapi.wm.ToolWindowFactory;
 import com.intellij.openapi.wm.ToolWindowManager;
-import icons.FlutterIcons;
-import io.flutter.utils.UIUtils;
 import io.flutter.utils.ViewListener;
 import org.jetbrains.annotations.NotNull;
 

flutter-idea/testSrc/unit/io/flutter/view/FlutterViewTest.java

@@ -7,7 +7,6 @@
 
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.wm.ToolWindow;
-import com.intellij.util.messages.MessageBusConnection;
 import io.flutter.ObservatoryConnector;
 import io.flutter.devtools.DevToolsIdeFeature;
 import io.flutter.inspector.InspectorGroupManagerService;