Request to start/stop calculating composition info from RenderWidget when it is active/inactive.

content/public/test/text_input_test_utils.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_PUBLIC_TEST_TEXT_INPUT_TEST_UTILS_H_
 #define CONTENT_PUBLIC_TEST_TEXT_INPUT_TEST_UTILS_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 31 matching lines @@
                              ui::TextInputType* type);
 
 // This method returns the number of RenderWidgetHostViews which are currently
 // registered with the TextInputManager that is owned by |web_contents|.
 size_t GetRegisteredViewsCountFromTextInputManager(WebContents* web_contents);
 
 // Returns the RWHV corresponding to the frame with a focused <input> within the
 // given WebContents.
 RenderWidgetHostView* GetActiveViewFromWebContents(WebContents* web_contents);
 
-// This method will send an InputMsg_ImeSetComposition IPC with the provided
-// parameters to the |render_widget_host|.
-void SetCompositionForRenderWidgetHost(
-    RenderWidgetHost* render_widget_host,
-    const base::string16& text,
-    const std::vector<ui::CompositionUnderline>& underlines,
-    const gfx::Range& replacement_range,
-    int selection_start,
-    int selection_end);
+// This method will send a request for an immediate update on composition range
+// from TextInputManager's active widget corresponding to the |web_contents|.
+// This function will return false if the request is not successfully sent;
+// either due to missing TextInputManager or lack of an active widget.
+bool RequestCompositionInfoFromActiveWidget(WebContents* web_contents);
 
 // This class provides the necessary API for accessing the state of and also
 // observing the TextInputManager for WebContents.
 class TextInputManagerTester {
  public:
   TextInputManagerTester(WebContents* web_contents);
   virtual ~TextInputManagerTester();
 
   // Sets a callback which is invoked when a RWHV calls UpdateTextInputState
   // on the TextInputManager which is being observed.
@@ skipping 109 matching lines @@
       const base::Closure& callback) = 0;
   virtual void SetOnShowImeIfNeededCallback(const base::Closure& callback) = 0;
 
  protected:
   TestInputMethodObserver();
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_TEST_TEXT_INPUT_TEST_UTILS_H_