Implement IsSearchProviderInstalled and a test for it.

chrome/common/render_messages.h

 // Copyright (c) 2010 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 CHROME_COMMON_RENDER_MESSAGES_H_
 #define CHROME_COMMON_RENDER_MESSAGES_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 129 matching lines @@
   enum Action {
     kClearSelection,
     kKeepSelection,
     kActivateSelection
   };
 
   // The action that should be taken when the find is completed.
   Action action;
 };
 
+// The install state of the search provider (not installed, installed, default).
+struct ViewHostMsg_GetSearchProviderInstallState_Params {
+  enum State {
+    // Equates to an access denied error.
+    DENIED = -1,
+
+    // DON'T CHANGE THE VALUES BELOW.
+    // All of the following values are manidated by the
+    // spec for window.external.IsSearchProviderInstalled.
+
+    // The search provider is not installed.
+    NOT_INSTALLED = 0,
+
+    // The search provider is in the user's set but is not
+    INSTALLED_BUT_NOT_DEFAULT = 1,
+
+    // The search provider is set as the user's default.
+    INSTALLED_AS_DEFAULT = 2
+  };
+  State state;
+
+  ViewHostMsg_GetSearchProviderInstallState_Params()
+    : state(DENIED) {

[sky, 2010/07/15 23:24:49]

indent 4

+  }
+
+  explicit ViewHostMsg_GetSearchProviderInstallState_Params(State s)
+    : state(s) {

[sky, 2010/07/15 23:24:49]

indent 4

+  }
+
+  static ViewHostMsg_GetSearchProviderInstallState_Params Denied() {
+    return ViewHostMsg_GetSearchProviderInstallState_Params(DENIED);
+  }
+
+  static ViewHostMsg_GetSearchProviderInstallState_Params NotInstalled() {
+    return ViewHostMsg_GetSearchProviderInstallState_Params(NOT_INSTALLED);
+  }
+
+  static ViewHostMsg_GetSearchProviderInstallState_Params
+      InstallButNotDefault() {
+    return ViewHostMsg_GetSearchProviderInstallState_Params(
+        INSTALLED_BUT_NOT_DEFAULT);
+  }
+
+  static ViewHostMsg_GetSearchProviderInstallState_Params InstalledAsDefault() {
+    return ViewHostMsg_GetSearchProviderInstallState_Params(
+        INSTALLED_AS_DEFAULT);
+  }
+};
+
+
 // Parameters structure for ViewHostMsg_FrameNavigate, which has too many data
 // parameters to be reasonably put in a predefined IPC message.
 struct ViewHostMsg_FrameNavigate_Params {
   // Page ID of this navigation. The renderer creates a new unique page ID
   // anytime a new session history entry is created. This means you'll get new
   // page IDs for user actions, and the old page IDs will be reloaded when
   // iframes are loaded automatically.
   int32 page_id;
 
   // URL of the page being loaded.
@@ skipping 782 matching lines @@
   static bool Read(const Message* m, void** iter, param_type* p) {
     return(
         ReadParam(m, iter, &p->font_name) &&
         ReadParam(m, iter, &p->font_point_size));
   }
   static void Log(const param_type& p, std::wstring* l) {
     l->append(L"<FontDescriptor>");
   }
 };
 
+// Traits for ViewHostMsg_GetSearchProviderInstallState_Params structure to
+// pack/unpack.
+template <>
+struct ParamTraits<ViewHostMsg_GetSearchProviderInstallState_Params> {
+  typedef ViewHostMsg_GetSearchProviderInstallState_Params param_type;
+  static void Write(Message* m, const param_type& p) {
+    m->WriteInt(p.state);
+  }
+  static bool Read(const Message* m, void** iter, param_type* p) {
+    int type;
+    if (!m->ReadInt(iter, &type))
+      return false;
+    p->state = static_cast<param_type::State>(type);
+    return true;
+  }
+  static void Log(const param_type& p, std::wstring* l) {
+    std::wstring state;
+    switch (p.state) {
+      case ViewHostMsg_GetSearchProviderInstallState_Params::DENIED:
+        state = L"ViewHostMsg_GetSearchProviderInstallState_Params::DENIED";
+        break;
+      case ViewHostMsg_GetSearchProviderInstallState_Params::NOT_INSTALLED:
+        state =
+            L"ViewHostMsg_GetSearchProviderInstallState_Params::NOT_INSTALLED";
+        break;
+      case ViewHostMsg_GetSearchProviderInstallState_Params::
+          INSTALLED_BUT_NOT_DEFAULT:
+        state = L"ViewHostMsg_GetSearchProviderInstallState_Params::"
+                L"INSTALLED_BUT_NOT_DEFAULT";
+        break;
+      case ViewHostMsg_GetSearchProviderInstallState_Params::
+          INSTALLED_AS_DEFAULT:
+        state = L"ViewHostMsg_GetSearchProviderInstallState_Params::"
+                L"INSTALLED_AS_DEFAULT";
+        break;
+      default:
+        state = L"UNKNOWN";
+        break;
+    }
+    LogParam(state, l);
+  }
+};
+
 // Traits for ViewHostMsg_FrameNavigate_Params structure to pack/unpack.
 template <>
 struct ParamTraits<ViewHostMsg_FrameNavigate_Params> {
   typedef ViewHostMsg_FrameNavigate_Params param_type;
   static void Write(Message* m, const param_type& p) {
     WriteParam(m, p.page_id);
     WriteParam(m, p.url);
     WriteParam(m, p.referrer);
     WriteParam(m, p.transition);
     WriteParam(m, p.redirects);
@@ skipping 2131 matching lines @@
     l->append(L")");
   }
 };
 
 }  // namespace IPC
 
 #define MESSAGES_INTERNAL_FILE "chrome/common/render_messages_internal.h"
 #include "ipc/ipc_message_macros.h"
 
 #endif  // CHROME_COMMON_RENDER_MESSAGES_H_