Support "learn more" link for EME in PermissionRequestManager code-path on Android

chrome/browser/ui/permission_bubble/mock_permission_prompt.cc

 // Copyright 2015 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.
 
 #include "chrome/browser/ui/permission_bubble/mock_permission_prompt.h"
 
 #include "base/bind.h"
 #include "base/run_loop.h"
 #include "chrome/browser/permissions/permission_request_manager.h"
 #include "chrome/browser/ui/permission_bubble/mock_permission_prompt_factory.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+#if !defined(OS_ANDROID)
+#include "ui/gfx/vector_icon_types.h"
+#endif
 
 MockPermissionPrompt::~MockPermissionPrompt() {
   Hide();
 }
 
 void MockPermissionPrompt::Show() {
   factory_->ShowView(this);
   factory_->show_count_++;
   factory_->requests_count_ = manager_->requests_.size();
   for (const PermissionRequest* request : manager_->requests_) {
     factory_->request_types_seen_.push_back(
         request->GetPermissionRequestType());
+    // The actual prompt will call these, so test they're sane.
+    EXPECT_FALSE(request->GetMessageTextFragment().empty());
+#if defined(OS_ANDROID)
+    EXPECT_FALSE(request->GetMessageText().empty());
+    EXPECT_NE(0, request->GetIconId());
+#else
+    EXPECT_FALSE(request->GetIconId().is_empty());
+#endif
   }
   factory_->UpdateResponseType();
   is_visible_ = true;
 }
 
 bool MockPermissionPrompt::CanAcceptRequestUpdate() {
   return can_update_ui_;
 }
 
 bool MockPermissionPrompt::HidesAutomatically() {
@@ skipping 17 matching lines @@
 bool MockPermissionPrompt::IsVisible() {
   return is_visible_;
 }
 
 MockPermissionPrompt::MockPermissionPrompt(MockPermissionPromptFactory* factory,
                                            PermissionRequestManager* manager)
     : factory_(factory),
       manager_(manager),
       can_update_ui_(true),
       is_visible_(false) {}