Fixes for re-enabling more MSVC level 4 warnings: content/browser/ edition

content/browser/devtools/renderer_overrides_handler.cc

 // Copyright (c) 2013 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 "content/browser/devtools/renderer_overrides_handler.h"
 
 #include <map>
 #include <string>
 
 #include "base/barrier_closure.h"
@@ skipping 308 matching lines @@
   screencast_command_ = NULL;
   return NULL;
 }
 
 scoped_refptr<DevToolsProtocol::Response>
 RendererOverridesHandler::PageHandleJavaScriptDialog(
     scoped_refptr<DevToolsProtocol::Command> command) {
   base::DictionaryValue* params = command->params();
   const char* paramAccept =
       devtools::Page::handleJavaScriptDialog::kParamAccept;
-  bool accept;
+  bool accept = false;
   if (!params || !params->GetBoolean(paramAccept, &accept))
     return command->InvalidParamResponse(paramAccept);
   base::string16 prompt_override;
   base::string16* prompt_override_ptr = &prompt_override;
   if (!params || !params->GetString(
       devtools::Page::handleJavaScriptDialog::kParamPromptText,
       prompt_override_ptr)) {
     prompt_override_ptr = NULL;
   }
 
@@ skipping 86 matching lines @@
           entries);
       return command->SuccessResponse(result);
     }
   }
   return command->InternalErrorResponse("No WebContents to navigate");
 }
 
 scoped_refptr<DevToolsProtocol::Response>
 RendererOverridesHandler::PageNavigateToHistoryEntry(
     scoped_refptr<DevToolsProtocol::Command> command) {
-  int entry_id;
-
   base::DictionaryValue* params = command->params();
   const char* param = devtools::Page::navigateToHistoryEntry::kParamEntryId;
+  int entry_id = 0;
   if (!params || !params->GetInteger(param, &entry_id)) {
     return command->InvalidParamResponse(param);
   }
 
   RenderViewHost* host = agent_->GetRenderViewHost();
   if (host) {
     WebContents* web_contents = host->GetDelegate()->GetAsWebContents();
     if (web_contents) {
       NavigationController& controller = web_contents->GetController();
       for (int i = 0; i != controller.GetEntryCount(); ++i) {
@@ skipping 523 matching lines @@
   if (!params->GetInteger(devtools::Input::dispatchGestureEvent::kParamX,
                           &event.x) ||
       !params->GetInteger(devtools::Input::dispatchGestureEvent::kParamY,
                           &event.y)) {
     return NULL;
   }
   event.globalX = event.x;
   event.globalY = event.y;
 
   if (type == "scrollUpdate") {
-    int dx;
-    int dy;
+    int dx = 0;
+    int dy = 0;
     if (!params->GetInteger(
             devtools::Input::dispatchGestureEvent::kParamDeltaX, &dx) ||
         !params->GetInteger(
             devtools::Input::dispatchGestureEvent::kParamDeltaY, &dy)) {
       return NULL;
     }
     event.data.scrollUpdate.deltaX = dx;
     event.data.scrollUpdate.deltaY = dy;
   }
 
   if (type == "pinchUpdate") {
     double scale;
     if (!params->GetDouble(
         devtools::Input::dispatchGestureEvent::kParamPinchScale,
         &scale)) {
       return NULL;
     }
     event.data.pinchUpdate.scale = static_cast<float>(scale);
   }
 
   host->ForwardGestureEvent(event);
   return command->SuccessResponse(NULL);
 }
 
 }  // namespace content