Implement Input Method related WebPlugin interface for browser plugin

content/browser/browser_plugin/browser_plugin_guest.cc

Index: content/browser/browser_plugin/browser_plugin_guest.cc
diff --git a/content/browser/browser_plugin/browser_plugin_guest.cc b/content/browser/browser_plugin/browser_plugin_guest.cc
index f07bd61ae8784b909f44604056d398ff05c82fbd..22067616fbba67ed6772ee171d1a3292d2dabd0f 100644
--- a/content/browser/browser_plugin/browser_plugin_guest.cc
+++ b/content/browser/browser_plugin/browser_plugin_guest.cc
@@ -513,6 +513,10 @@ bool BrowserPluginGuest::OnMessageReceivedFromEmbedder(
                         OnExecuteEditCommand)
     IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_HandleInputEvent,
                         OnHandleInputEvent)
+    IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_ImeConfirmComposition,
+                        OnImeConfirmComposition)
+    IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_ImeSetComposition,
+                        OnImeSetComposition)
     IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_LockMouse_ACK, OnLockMouseAck)
     IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_NavigateGuest, OnNavigateGuest)
     IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_PluginDestroyed, OnPluginDestroyed)
@@ -1115,6 +1119,8 @@ bool BrowserPluginGuest::ShouldForwardToBrowserPluginGuest(
     case BrowserPluginHostMsg_DragStatusUpdate::ID:
     case BrowserPluginHostMsg_ExecuteEditCommand::ID:
     case BrowserPluginHostMsg_HandleInputEvent::ID:
+    case BrowserPluginHostMsg_ImeConfirmComposition::ID:
+    case BrowserPluginHostMsg_ImeSetComposition::ID:
     case BrowserPluginHostMsg_LockMouse_ACK::ID:
     case BrowserPluginHostMsg_NavigateGuest::ID:
     case BrowserPluginHostMsg_PluginDestroyed::ID:
@@ -1150,6 +1156,14 @@ bool BrowserPluginGuest::OnMessageReceived(const IPC::Message& message) {
  #endif
     IPC_MESSAGE_HANDLER(ViewHostMsg_ShowWidget, OnShowWidget)
     IPC_MESSAGE_HANDLER(ViewHostMsg_TakeFocus, OnTakeFocus)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_TextInputTypeChanged,
+                        OnTextInputTypeChanged)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_ImeCancelComposition,
+                        OnImeCancelComposition)
+#if defined(OS_MACOSX) || defined(OS_WIN) || defined(USE_AURA)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_ImeCompositionRangeChanged,
+                        OnImeCompositionRangeChanged)
+#endif
     IPC_MESSAGE_HANDLER(ViewHostMsg_UnlockMouse, OnUnlockMouse)
     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateFrameName, OnUpdateFrameName)
     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateRect, OnUpdateRect)
@@ -1258,6 +1272,27 @@ void BrowserPluginGuest::OnExecuteEditCommand(int instance_id,
   Send(new InputMsg_ExecuteEditCommand(routing_id(), name, std::string()));
 }
 
+void BrowserPluginGuest::OnImeSetComposition(
+    int instance_id,
+    const std::string& text,
+    const std::vector<blink::WebCompositionUnderline>& underlines,
+    int selection_start,
+    int selection_end) {
+  Send(new ViewMsg_ImeSetComposition(routing_id(),
+                                     UTF8ToUTF16(text), underlines,
+                                     selection_start, selection_end));
+}
+
+void BrowserPluginGuest::OnImeConfirmComposition(
+    int instance_id,
+    const std::string& text,
+    bool keep_selection) {
+  Send(new ViewMsg_ImeConfirmComposition(routing_id(),
+                                         UTF8ToUTF16(text),
+                                         gfx::Range::InvalidRange(),
+                                         keep_selection));
+}
+
 void BrowserPluginGuest::OnReclaimCompositorResources(
     int instance_id,
     int route_id,
@@ -1744,6 +1779,31 @@ void BrowserPluginGuest::OnUpdateRect(
       new BrowserPluginMsg_UpdateRect(instance_id(), relay_params));
 }
 
+void BrowserPluginGuest::OnTextInputTypeChanged(ui::TextInputType type,
+                                                ui::TextInputMode input_mode,
+                                                bool can_compose_inline) {
+  RenderWidgetHostImpl* render_widget_host =
+
+      RenderWidgetHostImpl::From(GetWebContents()->GetRenderViewHost());
+  render_widget_host->ChangeTextInputType(type, input_mode, can_compose_inline);
+}
+
+void BrowserPluginGuest::OnImeCancelComposition() {
+  RenderWidgetHostImpl* render_widget_host =
+      RenderWidgetHostImpl::From(GetWebContents()->GetRenderViewHost());
+  render_widget_host->CancelImeComposition();
+}
+
+#if defined(OS_MACOSX) || defined(OS_WIN) || defined(USE_AURA)
+void BrowserPluginGuest::OnImeCompositionRangeChanged(
+      const gfx::Range& range,
+      const std::vector<gfx::Rect>& character_bounds) {
+  RenderWidgetHostImpl* render_widget_host =
+      RenderWidgetHostImpl::From(GetWebContents()->GetRenderViewHost());
+  render_widget_host->ChangeImeCompositionRange(range, character_bounds);
+}
+#endif
+
 void BrowserPluginGuest::DidRetrieveDownloadURLFromRequestId(
     const std::string& request_method,
     const base::Callback<void(bool)>& callback,