Add support for Android spellcheck menu in Chrome/WebViews

content/browser/android/ime_adapter_android.h

Index: content/browser/android/ime_adapter_android.h
diff --git a/content/browser/android/ime_adapter_android.h b/content/browser/android/ime_adapter_android.h
index efe4fbb23c7bd09916bdb429754025e5ec779e8f..374398657ea5d49fcc50eaecc6cf41390263b06f 100644
--- a/content/browser/android/ime_adapter_android.h
+++ b/content/browser/android/ime_adapter_android.h
@@ -11,7 +11,10 @@
 
 #include "base/android/jni_weak_ref.h"
 #include "content/browser/android/render_widget_host_connector.h"
+#include "content/browser/renderer_host/input/timeout_monitor.h"
 #include "content/common/content_export.h"
+#include "third_party/WebKit/public/platform/input_host.mojom.h"
+#include "third_party/WebKit/public/platform/input_messages.mojom.h"
 #include "ui/gfx/geometry/rect_f.h"
 
 namespace blink {
@@ -25,6 +28,7 @@ namespace content {
 class RenderFrameHost;
 class RenderWidgetHostImpl;
 class RenderWidgetHostViewAndroid;
+class TimeoutMonitor;
 struct TextInputState;
 
 // This class is in charge of dispatching key events from the java side
@@ -84,6 +88,18 @@ class CONTENT_EXPORT ImeAdapterAndroid : public RenderWidgetHostConnector {
                            bool monitorRequest);
   bool RequestTextInputStateUpdate(JNIEnv*,
                                    const base::android::JavaParamRef<jobject>&);
+  void ApplySpellCheckSuggestion(
+      JNIEnv*,
+      const base::android::JavaParamRef<jobject>&,
+      const base::android::JavaParamRef<jstring>& replacement);
+  void DeleteActiveSuggestionRange(JNIEnv*,
+                                   const base::android::JavaParamRef<jobject>&);
+  void NewWordAddedToDictionary(
+      JNIEnv*,
+      const base::android::JavaParamRef<jobject>&,
+      const base::android::JavaParamRef<jstring>& word);
+  void SuggestionMenuClosed(JNIEnv*,
+                            const base::android::JavaParamRef<jobject>&);
 
   // RendetWidgetHostConnector implementation.
   void UpdateRenderProcessConnection(
@@ -98,6 +114,13 @@ class CONTENT_EXPORT ImeAdapterAndroid : public RenderWidgetHostConnector {
   void CancelComposition();
   void FocusedNodeChanged(bool is_editable_node);
   void SetCharacterBounds(const std::vector<gfx::RectF>& rects);
+  void StartSpellCheckMenuTimer();
+  void StopSpellCheckMenuTimer();
+  void ShowSpellCheckSuggestionMenu(
+      double caret_x,
+      double caret_y,
+      const std::string& marked_text,
+      const std::vector<blink::mojom::SpellCheckSuggestionPtr>& suggestions);
 
   base::android::ScopedJavaLocalRef<jobject> java_ime_adapter_for_testing(
       JNIEnv* env) {
@@ -109,15 +132,19 @@ class CONTENT_EXPORT ImeAdapterAndroid : public RenderWidgetHostConnector {
  private:
   RenderWidgetHostImpl* GetFocusedWidget();
   RenderFrameHost* GetFocusedFrame();
+  const blink::mojom::TextSuggestionBackendPtr& GetTextSuggestionBackend();
   std::vector<blink::WebCompositionUnderline> GetUnderlinesFromSpans(
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& obj,
       const base::android::JavaParamRef<jobject>& text,
       const base::string16& text16);
+  void OnSpellCheckMenuTimeout();
 
   // Current RenderWidgetHostView connected to this instance. Can be null.
   RenderWidgetHostViewAndroid* rwhva_;
   JavaObjectWeakGlobalRef java_ime_adapter_;
+  blink::mojom::TextSuggestionBackendPtr text_suggestion_backend_;
+  TimeoutMonitor spellcheck_menu_timeout_;
 };
 
 bool RegisterImeAdapter(JNIEnv* env);