Integrate the new input method API for Views into Chromium.

views/widget/widget_gtk.h

Index: views/widget/widget_gtk.h
diff --git a/views/widget/widget_gtk.h b/views/widget/widget_gtk.h
index ed9e9fb3d0ad3167ceaa3145b6f4bdd83f86dd17..92d8dc6a9657e846af219935ee5b145cf6793d7a 100644
--- a/views/widget/widget_gtk.h
+++ b/views/widget/widget_gtk.h
@@ -13,6 +13,8 @@
 #include "ui/base/x/active_window_watcher_x.h"
 #include "ui/gfx/size.h"
 #include "views/focus/focus_manager.h"
+#include "views/ime/input_method_delegate.h"
+#include "views/ime/input_method_gtk.h"
 #include "views/widget/native_widget.h"
 #include "views/widget/widget.h"
 
@@ -41,7 +43,8 @@ class NativeWidgetDelegate;
 // Widget implementation for GTK.
 class WidgetGtk : public Widget,
                   public NativeWidget,
-                  public ui::ActiveWindowWatcherX::Observer {
+                  public ui::ActiveWindowWatcherX::Observer,
+                  public internal::InputMethodDelegate {
  public:
   // Type of widget.
   enum Type {
@@ -171,7 +174,7 @@ class WidgetGtk : public Widget,
 
   // Handles a keyboard event by sending it to our focus manager.
   // Returns true if it's handled by the focus manager.
-  bool HandleKeyboardEvent(GdkEventKey* event);
+  bool HandleKeyboardEvent(const KeyEvent& key);
 
   // Returns the view::Event::flags for a GdkEventButton.
   static int GetFlagsForEventButton(const GdkEventButton& event);
@@ -188,6 +191,8 @@ class WidgetGtk : public Widget,
   virtual void SetNativeCapture() OVERRIDE;
   virtual void ReleaseNativeCapture() OVERRIDE;
   virtual bool HasNativeCapture() const OVERRIDE;
+  virtual InputMethod* GetInputMethodNative() OVERRIDE;
+  virtual void ReplaceInputMethod(InputMethod* input_method) OVERRIDE;
   virtual gfx::Rect GetWindowScreenBounds() const OVERRIDE;
   virtual gfx::Rect GetClientAreaScreenBounds() const OVERRIDE;
   virtual void SetBounds(const gfx::Rect& bounds) OVERRIDE;
@@ -295,6 +300,9 @@ class WidgetGtk : public Widget,
   // Overridden from NativeWidget
   virtual gfx::AcceleratedWidget GetAcceleratedWidget() OVERRIDE;
 
+  // Overridden from internal::InputMethodDelegate
+  virtual void DispatchKeyEventPostIME(const KeyEvent& key) OVERRIDE;
+
   CHROMEGTK_CALLBACK_1(WidgetGtk, gboolean, OnWindowPaint, GdkEventExpose*);
 
   // Process a mouse click.
@@ -428,6 +436,8 @@ class WidgetGtk : public Widget,
   // view the drag started from.
   View* dragged_view_;
 
+  scoped_ptr<InputMethod> input_method_;
+
   DISALLOW_COPY_AND_ASSIGN(WidgetGtk);
 };